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12919088 = 2471319467
BaseRepresentation
bin110001010010…
…000100110000
3220022100122202
4301102010300
511301402323
61140522332
7214544660
oct61220460
926270582
1012919088
117324336
1243b03a8
1328a4440
141a041a0
151202d28
hexc52130

12919088 has 80 divisors (see below), whose sum is σ = 32497920. Its totient is φ = 4831488.

The previous prime is 12919061. The next prime is 12919091. The reversal of 12919088 is 88091921.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27431 + ... + 27897.

It is an arithmetic number, because the mean of its divisors is an integer number (406224).

Almost surely, 212919088 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 12919088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16248960).

12919088 is an abundant number, since it is smaller than the sum of its proper divisors (19578832).

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

12919088 is a wasteful number, since it uses less digits than its factorization.

12919088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514 (or 508 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 38.

The square root of 12919088 is about 3594.3132862899. The cubic root of 12919088 is about 234.6446296168.

The spelling of 12919088 in words is "twelve million, nine hundred nineteen thousand, eighty-eight".

Divisors: 1 2 4 7 8 13 14 16 19 26 28 38 52 56 76 91 104 112 133 152 182 208 247 266 304 364 467 494 532 728 934 988 1064 1456 1729 1868 1976 2128 3269 3458 3736 3952 6071 6538 6916 7472 8873 12142 13076 13832 17746 24284 26152 27664 35492 42497 48568 52304 62111 70984 84994 97136 115349 124222 141968 169988 230698 248444 339976 461396 496888 679952 807443 922792 993776 1614886 1845584 3229772 6459544 12919088