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12878196 = 2231073183
BaseRepresentation
bin110001001000…
…000101110100
3220020021120020
4301020011310
511244100241
61140005140
7214314522
oct61100564
926207506
1012878196
1172a6641
1243907b0
13288b946
1419d3312
1511e5b66
hexc48174

12878196 has 12 divisors (see below), whose sum is σ = 30049152. Its totient is φ = 4292728.

The previous prime is 12878189. The next prime is 12878213. The reversal of 12878196 is 69187821.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536580 + ... + 536603.

It is an arithmetic number, because the mean of its divisors is an integer number (2504096).

Almost surely, 212878196 is an apocalyptic number.

It is an amenable number.

12878196 is an abundant number, since it is smaller than the sum of its proper divisors (17170956).

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

12878196 is a wasteful number, since it uses less digits than its factorization.

12878196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073190 (or 1073188 counting only the distinct ones).

The product of its digits is 48384, while the sum is 42.

The square root of 12878196 is about 3588.6203477102. The cubic root of 12878196 is about 234.3967991813.

The spelling of 12878196 in words is "twelve million, eight hundred seventy-eight thousand, one hundred ninety-six".

Divisors: 1 2 3 4 6 12 1073183 2146366 3219549 4292732 6439098 12878196