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13022988 = 2231128969
BaseRepresentation
bin110001101011…
…011100001100
3220111122011220
4301223130030
511313213423
61143043340
7215456616
oct61533414
926448156
1013022988
117395400
124440550
13290c814
141a2ddb6
1512239e3
hexc6b70c

13022988 has 36 divisors (see below), whose sum is σ = 33404280. Its totient is φ = 3945920.

The previous prime is 13022963. The next prime is 13023013. The reversal of 13022988 is 88922031.

13022988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13022963) and next prime (13023013).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3033 + ... + 5936.

Almost surely, 213022988 is an apocalyptic number.

It is an amenable number.

13022988 is an abundant number, since it is smaller than the sum of its proper divisors (20381292).

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

13022988 is a wasteful number, since it uses less digits than its factorization.

13022988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8998 (or 8985 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 13022988 is about 3608.7377294561. The cubic root of 13022988 is about 235.2719832659.

The spelling of 13022988 in words is "thirteen million, twenty-two thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 121 132 242 363 484 726 1452 8969 17938 26907 35876 53814 98659 107628 197318 295977 394636 591954 1085249 1183908 2170498 3255747 4340996 6511494 13022988