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12918852 = 223513291
BaseRepresentation
bin110001010010…
…000001000100
3220022100100000
4301102001010
511301400402
61140521300
7214544202
oct61220104
926270300
1012918852
117324141
1243b0230
1328a42bb
141a04072
151202c1c
hexc52044

12918852 has 36 divisors (see below), whose sum is σ = 33868016. Its totient is φ = 4305960.

The previous prime is 12918839. The next prime is 12918853. The reversal of 12918852 is 25881921.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (12918853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5674 + ... + 7617.

Almost surely, 212918852 is an apocalyptic number.

12918852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12918852 is an abundant number, since it is smaller than the sum of its proper divisors (20949164).

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

12918852 is a wasteful number, since it uses less digits than its factorization.

12918852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13310 (or 13296 counting only the distinct ones).

The product of its digits is 11520, while the sum is 36.

The square root of 12918852 is about 3594.2804565031. The cubic root of 12918852 is about 234.6432008144.

It can be divided in two parts, 129 and 18852, that added together give a palindrome (18981).

The spelling of 12918852 in words is "twelve million, nine hundred eighteen thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 243 324 486 972 13291 26582 39873 53164 79746 119619 159492 239238 358857 478476 717714 1076571 1435428 2153142 3229713 4306284 6459426 12918852