Search a number
-
+
83448225 = 345272292
BaseRepresentation
bin1001111100101…
…01000110100001
312211000121110000
410332111012201
5132330320400
612140330213
72032204200
oct476250641
9184017400
1083448225
1143116983
1223b43969
1314399a63
14b123237
1574d5600
hex4f951a1

83448225 has 135 divisors (see below), whose sum is σ = 186225897. Its totient is φ = 36832320.

The previous prime is 83448191. The next prime is 83448241. The reversal of 83448225 is 52284438.

The square root of 83448225 is 9135.

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

It can be written as a sum of positive squares in 4 ways, for example, as 1147041 + 82301184 = 1071^2 + 9072^2 .

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

It is not a de Polignac number, because 83448225 - 27 = 83448097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83448225.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 2877511 + ... + 2877539.

Almost surely, 283448225 is an apocalyptic number.

83448225 is the 9135-th square number.

83448225 is the 4568-th centered octagonal number.

It is an amenable number.

83448225 is an abundant number, since it is smaller than the sum of its proper divisors (102777672).

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

83448225 is a wasteful number, since it uses less digits than its factorization.

83448225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94 (or 44 counting only the distinct ones).

The product of its digits is 61440, while the sum is 36.

The cubic root of 83448225 is about 436.9908744191.

Multiplying 83448225 by its sum of digits (36), we get a square (3004136100 = 548102).

The spelling of 83448225 in words is "eighty-three million, four hundred forty-eight thousand, two hundred twenty-five".

Divisors: 1 3 5 7 9 15 21 25 27 29 35 45 49 63 75 81 87 105 135 145 147 175 189 203 225 245 261 315 405 435 441 525 567 609 675 725 735 783 841 945 1015 1225 1305 1323 1421 1575 1827 2025 2175 2205 2349 2523 2835 3045 3675 3915 3969 4205 4263 4725 5075 5481 5887 6525 6615 7105 7569 9135 11025 11745 12615 12789 14175 15225 16443 17661 19575 19845 21025 21315 22707 27405 29435 33075 35525 37845 38367 41209 45675 52983 58725 63075 63945 68121 82215 88305 99225 106575 113535 115101 123627 137025 147175 158949 189225 191835 206045 264915 319725 340605 370881 411075 441525 476847 567675 575505 618135 794745 959175 1030225 1112643 1324575 1703025 1854405 2384235 2877525 3090675 3337929 3973725 5563215 9272025 11921175 16689645 27816075 83448225