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120180225 = 352112171941
BaseRepresentation
bin1110010100111…
…00111000000001
322101010210021110
413022130320001
5221231231400
615531513533
72656341444
oct712347001
9271123243
10120180225
1161925200
12342b88a9
131bb8ac79
1411d6565b
15a83de50
hex729ce01

120180225 has 144 divisors (see below), whose sum is σ = 249359040. Its totient is φ = 50688000.

The previous prime is 120180173. The next prime is 120180241. The reversal of 120180225 is 522081021.

It is a happy number.

It is not a de Polignac number, because 120180225 - 215 = 120147457 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2931205 + ... + 2931245.

It is an arithmetic number, because the mean of its divisors is an integer number (1731660).

Almost surely, 2120180225 is an apocalyptic number.

120180225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120180225 is an abundant number, since it is smaller than the sum of its proper divisors (129178815).

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

120180225 is a wasteful number, since it uses less digits than its factorization.

120180225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 120180225 is about 10962.6741719345. The cubic root of 120180225 is about 493.4892208340.

The spelling of 120180225 in words is "one hundred twenty million, one hundred eighty thousand, two hundred twenty-five".

Divisors: 1 3 5 11 15 17 19 25 33 41 51 55 57 75 85 95 121 123 165 187 205 209 255 275 285 323 363 425 451 475 561 605 615 627 697 779 825 935 969 1025 1045 1275 1353 1425 1615 1815 2057 2091 2255 2299 2337 2805 3025 3075 3135 3485 3553 3895 4675 4845 4961 5225 6171 6765 6897 7667 8075 8569 9075 10285 10455 10659 11275 11495 11685 13243 14025 14883 15675 17425 17765 19475 23001 24225 24805 25707 30855 33825 34485 38335 39083 39729 42845 51425 52275 53295 57475 58425 66215 74415 84337 88825 94259 115005 117249 124025 128535 145673 154275 172425 191675 195415 198645 214225 253011 266475 282777 331075 372075 421685 437019 471295 575025 586245 642675 728365 977075 993225 1265055 1413885 1602403 2108425 2185095 2356475 2931225 3641825 4807209 6325275 7069425 8012015 10925475 24036045 40060075 120180225