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22680742 = 277920507
BaseRepresentation
bin101011010000…
…1010010100110
31120200022010111
41112201102212
521301240432
62130043234
7363532420
oct126412246
946608114
1022680742
1111891417
12771951a
134911676
143025810
151ed0347
hex15a14a6

22680742 has 16 divisors (see below), whose sum is σ = 39375360. Its totient is φ = 9596808.

The previous prime is 22680733. The next prime is 22680787. The reversal of 22680742 is 24708622.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9148 + ... + 11359.

It is an arithmetic number, because the mean of its divisors is an integer number (2460960).

Almost surely, 222680742 is an apocalyptic number.

22680742 is a deficient number, since it is larger than the sum of its proper divisors (16694618).

22680742 is a wasteful number, since it uses less digits than its factorization.

22680742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20595.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 22680742 is about 4762.4302619566. The cubic root of 22680742 is about 283.0647256715.

The spelling of 22680742 in words is "twenty-two million, six hundred eighty thousand, seven hundred forty-two".

Divisors: 1 2 7 14 79 158 553 1106 20507 41014 143549 287098 1620053 3240106 11340371 22680742