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20165248 = 27257613
BaseRepresentation
bin100110011101…
…1001010000000
31101221111112001
41030323022000
520130241443
62000113344
7333254545
oct114731200
941844461
1020165248
11104234a4
126905854
1342406cc
14296cbcc
151b84d4d
hex133b280

20165248 has 32 divisors (see below), whose sum is σ = 40395060. Its totient is φ = 10027008.

The previous prime is 20165239. The next prime is 20165261. The reversal of 20165248 is 84256102.

It can be written as a sum of positive squares in 2 ways, for example, as 20142144 + 23104 = 4488^2 + 152^2 .

It is a tau number, because it is divible by the number of its divisors (32).

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, 32590 + ... + 33202.

Almost surely, 220165248 is an apocalyptic number.

It is an amenable number.

20165248 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

20165248 is an equidigital number, since it uses as much as digits as its factorization.

20165248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884 (or 872 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 20165248 is about 4490.5732373495. The cubic root of 20165248 is about 272.1872989089.

The spelling of 20165248 in words is "twenty million, one hundred sixty-five thousand, two hundred forty-eight".

Divisors: 1 2 4 8 16 32 64 128 257 514 613 1028 1226 2056 2452 4112 4904 8224 9808 16448 19616 32896 39232 78464 157541 315082 630164 1260328 2520656 5041312 10082624 20165248