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12915032 = 2313124183
BaseRepresentation
bin110001010001…
…000101011000
3220022011002112
4301101011120
511301240112
61140451452
7214530104
oct61210530
926264075
1012915032
117321289
1243a9b88
1328a2640
141a02904
151201a22
hexc51158

12915032 has 16 divisors (see below), whose sum is σ = 26078640. Its totient is φ = 5960736.

The previous prime is 12915031. The next prime is 12915037. The reversal of 12915032 is 23051921.

It is a super-2 number, since 2×129150322 = 333596103122048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12914989 and 12915007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12915031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61988 + ... + 62195.

It is an arithmetic number, because the mean of its divisors is an integer number (1629915).

Almost surely, 212915032 is an apocalyptic number.

It is an amenable number.

12915032 is an abundant number, since it is smaller than the sum of its proper divisors (13163608).

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

12915032 is a wasteful number, since it uses less digits than its factorization.

12915032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124202 (or 124198 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 12915032 is about 3593.7490173912. The cubic root of 12915032 is about 234.6200711693.

Adding to 12915032 its reverse (23051921), we get a palindrome (35966953).

The spelling of 12915032 in words is "twelve million, nine hundred fifteen thousand, thirty-two".

Divisors: 1 2 4 8 13 26 52 104 124183 248366 496732 993464 1614379 3228758 6457516 12915032