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12872492 = 223218123
BaseRepresentation
bin110001000110…
…101100101100
3220012222201222
4301012230230
511243404432
61135522512
7214262063
oct61065454
926188658
1012872492
1172a2326
124389438
132889179
1419d11da
1511e4112
hexc46b2c

12872492 has 6 divisors (see below), whose sum is σ = 22526868. Its totient is φ = 6436244.

The previous prime is 12872473. The next prime is 12872507. The reversal of 12872492 is 29427821.

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 as a sum of consecutive naturals, namely, 1609058 + ... + 1609065.

It is an arithmetic number, because the mean of its divisors is an integer number (3754478).

Almost surely, 212872492 is an apocalyptic number.

It is an amenable number.

12872492 is a deficient number, since it is larger than the sum of its proper divisors (9654376).

12872492 is a wasteful number, since it uses less digits than its factorization.

12872492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3218127 (or 3218125 counting only the distinct ones).

The product of its digits is 16128, while the sum is 35.

The square root of 12872492 is about 3587.8255253008. The cubic root of 12872492 is about 234.3621877915.

The spelling of 12872492 in words is "twelve million, eight hundred seventy-two thousand, four hundred ninety-two".

Divisors: 1 2 4 3218123 6436246 12872492