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38472520 = 235961813
BaseRepresentation
bin1001001011000…
…0101101001000
32200101121101011
42102300231020
534322110040
63452333304
7645003532
oct222605510
980347334
1038472520
111a797a79
1210a74234
137c80508
145176852
15359e3ea
hex24b0b48

38472520 has 16 divisors (see below), whose sum is σ = 86563260. Its totient is φ = 15388992.

The previous prime is 38472509. The next prime is 38472521. The reversal of 38472520 is 2527483.

It can be written as a sum of positive squares in 2 ways, for example, as 36168196 + 2304324 = 6014^2 + 1518^2 .

It is not an unprimeable number, because it can be changed into a prime (38472521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 480867 + ... + 480946.

Almost surely, 238472520 is an apocalyptic number.

It is an amenable number.

38472520 is an abundant number, since it is smaller than the sum of its proper divisors (48090740).

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

38472520 is a wasteful number, since it uses less digits than its factorization.

38472520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961824 (or 961820 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 38472520 is about 6202.6220262079. The cubic root of 38472520 is about 337.5853135948.

The spelling of 38472520 in words is "thirty-eight million, four hundred seventy-two thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 961813 1923626 3847252 4809065 7694504 9618130 19236260 38472520