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23438932 = 22111923253
BaseRepresentation
bin101100101101…
…0011001010100
31122002211011121
41121122121110
522000021212
62154213324
7403141036
oct131323124
948084147
1023438932
111225a020
127a24244
134b187ba
143181c56
1520ced07
hex165a654

23438932 has 72 divisors (see below), whose sum is σ = 50168160. Its totient is φ = 9472320.

The previous prime is 23438929. The next prime is 23438939. The reversal of 23438932 is 23983432.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

Its product of digits (31104) is a multiple of the sum of its prime divisors (108).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23438939) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 442218 + ... + 442270.

It is an arithmetic number, because the mean of its divisors is an integer number (696780).

Almost surely, 223438932 is an apocalyptic number.

23438932 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

23438932 is an abundant number, since it is smaller than the sum of its proper divisors (26729228).

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

23438932 is a wasteful number, since it uses less digits than its factorization.

23438932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 108 counting only the distinct ones).

The product of its digits is 31104, while the sum is 34.

The square root of 23438932 is about 4841.3770768243. The cubic root of 23438932 is about 286.1843888958.

The spelling of 23438932 in words is "twenty-three million, four hundred thirty-eight thousand, nine hundred thirty-two".

Divisors: 1 2 4 11 19 22 23 38 44 46 53 76 92 106 209 212 253 418 437 506 529 583 836 874 1007 1012 1058 1166 1219 1748 2014 2116 2332 2438 4028 4807 4876 5819 9614 10051 11077 11638 13409 19228 20102 22154 23161 23276 26818 28037 40204 44308 46322 53636 56074 92644 110561 112148 221122 254771 308407 442244 509542 532703 616814 1019084 1065406 1233628 2130812 5859733 11719466 23438932