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12892292 = 227265777
BaseRepresentation
bin110001001011…
…100010000100
3220020222220022
4301023202010
511300023132
61140154312
7214403600
oct61134204
926228808
1012892292
117306196
124398998
13289519a
1419d8500
1511e9e12
hexc4b884

12892292 has 18 divisors (see below), whose sum is σ = 26245422. Its totient is φ = 5525184.

The previous prime is 12892291. The next prime is 12892301. The reversal of 12892292 is 29229821.

It can be written as a sum of positive squares in only one way, i.e., 11669056 + 1223236 = 3416^2 + 1106^2 .

It is a super-2 number, since 2×128922922 = 332422386026528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12892291) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32693 + ... + 33084.

It is an arithmetic number, because the mean of its divisors is an integer number (1458079).

Almost surely, 212892292 is an apocalyptic number.

It is an amenable number.

12892292 is an abundant number, since it is smaller than the sum of its proper divisors (13353130).

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

12892292 is a wasteful number, since it uses less digits than its factorization.

12892292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65795 (or 65786 counting only the distinct ones).

The product of its digits is 10368, while the sum is 35.

The square root of 12892292 is about 3590.5837965434. The cubic root of 12892292 is about 234.4822887047.

The spelling of 12892292 in words is "twelve million, eight hundred ninety-two thousand, two hundred ninety-two".

Divisors: 1 2 4 7 14 28 49 98 196 65777 131554 263108 460439 920878 1841756 3223073 6446146 12892292