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12890234 = 272314243
BaseRepresentation
bin110001001011…
…000001111010
3220020220002002
4301023001322
511244441414
61140141002
7214364600
oct61130172
926226062
1012890234
117304695
124397762
132894276
1419d7870
1511e94de
hexc4b07a

12890234 has 24 divisors (see below), whose sum is σ = 23223168. Its totient is φ = 5344920.

The previous prime is 12890219. The next prime is 12890243. The reversal of 12890234 is 43209821.

It is a junction number, because it is equal to n+sod(n) for n = 12890197 and 12890206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 917 + ... + 5159.

It is an arithmetic number, because the mean of its divisors is an integer number (967632).

Almost surely, 212890234 is an apocalyptic number.

12890234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12890234 is a deficient number, since it is larger than the sum of its proper divisors (10332934).

12890234 is a wasteful number, since it uses less digits than its factorization.

12890234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4290 (or 4283 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 12890234 is about 3590.2972021826. The cubic root of 12890234 is about 234.4698112173.

The spelling of 12890234 in words is "twelve million, eight hundred ninety thousand, two hundred thirty-four".

Divisors: 1 2 7 14 31 49 62 98 217 434 1519 3038 4243 8486 29701 59402 131533 207907 263066 415814 920731 1841462 6445117 12890234