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22956428 = 22113759239
BaseRepresentation
bin101011110010…
…0100110001100
31121012022022002
41113210212030
521334101203
62140011432
7366061235
oct127444614
947168262
1022956428
1111a5a560
127830b78
1349a9cb1
14309808c
152036d88
hex15e498c

22956428 has 48 divisors (see below), whose sum is σ = 45964800. Its totient is φ = 9938880.

The previous prime is 22956413. The next prime is 22956463. The reversal of 22956428 is 82465922.

It is a junction number, because it is equal to n+sod(n) for n = 22956391 and 22956400.

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, 95933 + ... + 96171.

It is an arithmetic number, because the mean of its divisors is an integer number (957600).

Almost surely, 222956428 is an apocalyptic number.

It is an amenable number.

22956428 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

22956428 is a wasteful number, since it uses less digits than its factorization.

22956428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350 (or 348 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

The square root of 22956428 is about 4791.2866747879. The cubic root of 22956428 is about 284.2070004448.

The spelling of 22956428 in words is "twenty-two million, nine hundred fifty-six thousand, four hundred twenty-eight".

Divisors: 1 2 4 11 22 37 44 59 74 118 148 236 239 407 478 649 814 956 1298 1628 2183 2596 2629 4366 5258 8732 8843 10516 14101 17686 24013 28202 35372 48026 56404 96052 97273 155111 194546 310222 389092 521737 620444 1043474 2086948 5739107 11478214 22956428