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32125185225 = 3452725692
BaseRepresentation
bin11101111010110011…
…110110110011001001
310001220212012111110000
4131322303312303021
51011243021411400
622431430113213
72215043366100
oct357263666311
9101825174400
1032125185225
1112695914161
1262867ab809
13304c760553
1417aa7ad037
15c804b8600
hex77acf6cc9

32125185225 has 135 divisors (see below), whose sum is σ = 69344238117. Its totient is φ = 14659989120.

The previous prime is 32125185173. The next prime is 32125185251. The reversal of 32125185225 is 52258152123.

The square root of 32125185225 is 179235.

It is a perfect power (a square), and thus also a powerful number.

32125185225 is a `hidden beast` number, since 3 + 2 + 125 + 1 + 8 + 522 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 7635439161 + 24489746064 = 87381^2 + 156492^2 .

It is a tau number, because it is divible by the number of its divisors (135).

It is not a de Polignac number, because 32125185225 - 211 = 32125183177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 32125185225.

It is an unprimeable number.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 56458741 + ... + 56459309.

Almost surely, 232125185225 is an apocalyptic number.

32125185225 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

32125185225 is the 179235-th square number.

32125185225 is the 89618-th centered octagonal number.

It is an amenable number.

32125185225 is an abundant number, since it is smaller than the sum of its proper divisors (37219052892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

32125185225 is an frugal number, since it uses more digits than its factorization.

32125185225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174 (or 584 counting only the distinct ones).

The product of its digits is 48000, while the sum is 36.

Multiplying 32125185225 by its sum of digits (36), we get a square (1156506668100 = 10754102).

The spelling of 32125185225 in words is "thirty-two billion, one hundred twenty-five million, one hundred eighty-five thousand, two hundred twenty-five".

Divisors: 1 3 5 7 9 15 21 25 27 35 45 49 63 75 81 105 135 147 175 189 225 245 315 405 441 525 567 569 675 735 945 1225 1323 1575 1707 2025 2205 2835 2845 3675 3969 3983 4725 5121 6615 8535 11025 11949 14175 14225 15363 19845 19915 25605 27881 33075 35847 42675 46089 59745 76815 83643 99225 99575 107541 128025 139405 179235 230445 250929 298725 322623 323761 384075 418215 537705 697025 752787 896175 971283 1152225 1254645 1613115 1618805 2091075 2258361 2266327 2688525 2913849 3763935 4856415 6273225 6798981 8065575 8094025 8741547 11291805 11331635 14569245 15864289 18819675 20396943 24282075 26224641 33994905 43707735 47592867 56459025 56658175 61190829 72846225 79321445 101984715 131123205 142778601 169974525 183572487 218538675 237964335 305954145 396607225 428335803 509923575 655616025 713893005 917862435 1189821675 1285007409 1529770725 2141679015 3569465025 4589312175 6425037045 10708395075 32125185225