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23872288 = 251167819
BaseRepresentation
bin101101100010…
…0001100100000
31122220211121211
41123010030200
522102403123
62211355504
7406624336
oct133041440
948824554
1023872288
1112525670
127bb2b94
134c3ab1b
143255b56
15216840d
hex16c4320

23872288 has 24 divisors (see below), whose sum is σ = 51271920. Its totient is φ = 10850880.

The previous prime is 23872279. The next prime is 23872297. The reversal of 23872288 is 88227832.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23872279) and next prime (23872297).

It is a super-2 number, since 2×238722882 = 1139772268709888, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23872288.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33558 + ... + 34261.

It is an arithmetic number, because the mean of its divisors is an integer number (2136330).

Almost surely, 223872288 is an apocalyptic number.

It is an amenable number.

23872288 is an abundant number, since it is smaller than the sum of its proper divisors (27399632).

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

23872288 is a wasteful number, since it uses less digits than its factorization.

23872288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67840 (or 67832 counting only the distinct ones).

The product of its digits is 86016, while the sum is 40.

The square root of 23872288 is about 4885.9275475594. The cubic root of 23872288 is about 287.9373577750.

The spelling of 23872288 in words is "twenty-three million, eight hundred seventy-two thousand, two hundred eighty-eight".

Divisors: 1 2 4 8 11 16 22 32 44 88 176 352 67819 135638 271276 542552 746009 1085104 1492018 2170208 2984036 5968072 11936144 23872288