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23938880 = 265710687
BaseRepresentation
bin101101101010…
…0011101000000
31200001012222012
41123110131000
522112021010
62213032052
7410322440
oct133243500
950035865
1023938880
11125706a9
128025628
134c62224
143272120
15217d005
hex16d4740

23938880 has 56 divisors (see below), whose sum is σ = 65154048. Its totient is φ = 8206848.

The previous prime is 23938877. The next prime is 23938897. The reversal of 23938880 is 8883932.

It is a tau number, because it is divible by the number of its divisors (56).

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, 3104 + ... + 7583.

Almost surely, 223938880 is an apocalyptic number.

23938880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23938880 is an abundant number, since it is smaller than the sum of its proper divisors (41215168).

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

23938880 is a wasteful number, since it uses less digits than its factorization.

23938880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10711 (or 10701 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 23938880 is about 4892.7374750747. The cubic root of 23938880 is about 288.2048439793.

The spelling of 23938880 in words is "twenty-three million, nine hundred thirty-eight thousand, eight hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 64 70 80 112 140 160 224 280 320 448 560 1120 2240 10687 21374 42748 53435 74809 85496 106870 149618 170992 213740 299236 341984 374045 427480 598472 683968 748090 854960 1196944 1496180 1709920 2393888 2992360 3419840 4787776 5984720 11969440 23938880