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12698992 = 2419371129
BaseRepresentation
bin110000011100…
…010101110000
3212220011202001
4300130111300
511222331432
61132103344
7212640205
oct60342560
925804661
1012698992
117193a39
124304b54
1328281c7
141987cac
1511ac9e7
hexc1c570

12698992 has 40 divisors (see below), whose sum is σ = 26622800. Its totient is φ = 5847552.

The previous prime is 12698981. The next prime is 12698993. The reversal of 12698992 is 29989621.

It is a super-2 number, since 2×126989922 = 322528795632128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12698993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10684 + ... + 11812.

It is an arithmetic number, because the mean of its divisors is an integer number (665570).

Almost surely, 212698992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12698992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13311400).

12698992 is an abundant number, since it is smaller than the sum of its proper divisors (13923808).

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

12698992 is a wasteful number, since it uses less digits than its factorization.

12698992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193 (or 1187 counting only the distinct ones).

The product of its digits is 139968, while the sum is 46.

The square root of 12698992 is about 3563.5645076244. The cubic root of 12698992 is about 233.3044826007.

The spelling of 12698992 in words is "twelve million, six hundred ninety-eight thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 16 19 37 38 74 76 148 152 296 304 592 703 1129 1406 2258 2812 4516 5624 9032 11248 18064 21451 41773 42902 83546 85804 167092 171608 334184 343216 668368 793687 1587374 3174748 6349496 12698992