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12880898 = 219419809
BaseRepresentation
bin110001001000…
…110000000010
3220020102021022
4301020300002
511244142043
61140025442
7214325432
oct61106002
926212238
1012880898
1172a8678
124392282
13288cc44
1419d42c2
1511e6868
hexc48c02

12880898 has 16 divisors (see below), whose sum is σ = 20412000. Its totient is φ = 6079392.

The previous prime is 12880859. The next prime is 12880913. The reversal of 12880898 is 89808821.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15518 + ... + 16326.

It is an arithmetic number, because the mean of its divisors is an integer number (1275750).

Almost surely, 212880898 is an apocalyptic number.

12880898 is a deficient number, since it is larger than the sum of its proper divisors (7531102).

12880898 is a wasteful number, since it uses less digits than its factorization.

12880898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249.

The product of its (nonzero) digits is 73728, while the sum is 44.

The square root of 12880898 is about 3588.9967957634. The cubic root of 12880898 is about 234.4131911217.

The spelling of 12880898 in words is "twelve million, eight hundred eighty thousand, eight hundred ninety-eight".

Divisors: 1 2 19 38 419 809 838 1618 7961 15371 15922 30742 338971 677942 6440449 12880898