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22972704 = 253972467
BaseRepresentation
bin101011110100…
…0100100100000
31121020010121220
41113220210200
521340111304
62140215040
7366156546
oct127504440
947203556
1022972704
1111a70807
12783a480
1349b4521
14309dd96
15203bad9
hex15e8920

22972704 has 48 divisors (see below), whose sum is σ = 60949728. Its totient is φ = 7575552.

The previous prime is 22972693. The next prime is 22972717. The reversal of 22972704 is 40727922.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8079 + ... + 10545.

It is an arithmetic number, because the mean of its divisors is an integer number (1269786).

Almost surely, 222972704 is an apocalyptic number.

22972704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22972704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30474864).

22972704 is an abundant number, since it is smaller than the sum of its proper divisors (37977024).

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

22972704 is a wasteful number, since it uses less digits than its factorization.

22972704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2577 (or 2569 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 22972704 is about 4792.9848737504. The cubic root of 22972704 is about 284.2741517217.

The spelling of 22972704 in words is "twenty-two million, nine hundred seventy-two thousand, seven hundred four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 97 194 291 388 582 776 1164 1552 2328 2467 3104 4656 4934 7401 9312 9868 14802 19736 29604 39472 59208 78944 118416 236832 239299 478598 717897 957196 1435794 1914392 2871588 3828784 5743176 7657568 11486352 22972704