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152521325 = 52111513673
BaseRepresentation
bin10010001011101…
…00101001101101
3101121222212220222
421011310221231
5303021140300
623045021125
73531260405
oct1105645155
9347885828
10152521325
1179104590
12430b47a5
13257a2708
1416383805
15d5cb785
hex9174a6d

152521325 has 24 divisors (see below), whose sum is σ = 207742656. Its totient is φ = 110160000.

The previous prime is 152521321. The next prime is 152521337. The reversal of 152521325 is 523125251.

152521325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 152521325 - 22 = 152521321 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 152521294 and 152521303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152521321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39689 + ... + 43361.

It is an arithmetic number, because the mean of its divisors is an integer number (8655944).

Almost surely, 2152521325 is an apocalyptic number.

It is an amenable number.

152521325 is a deficient number, since it is larger than the sum of its proper divisors (55221331).

152521325 is a wasteful number, since it uses less digits than its factorization.

152521325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3845 (or 3840 counting only the distinct ones).

The product of its digits is 3000, while the sum is 26.

The square root of 152521325 is about 12349.9524290582. The cubic root of 152521325 is about 534.2897670793.

Adding to 152521325 its reverse (523125251), we get a palindrome (675646576).

The spelling of 152521325 in words is "one hundred fifty-two million, five hundred twenty-one thousand, three hundred twenty-five".

Divisors: 1 5 11 25 55 151 275 755 1661 3673 3775 8305 18365 40403 41525 91825 202015 554623 1010075 2773115 6100853 13865575 30504265 152521325