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38404125 = 34533793
BaseRepresentation
bin1001001010000…
…0000000011101
32200021010120000
42102200000131
534312413000
63451044513
7644300244
oct222400035
980233500
1038404125
111a750651
1210a40739
137c58346
14515995b
153589000
hex24a001d

38404125 has 40 divisors (see below), whose sum is σ = 71615544. Its totient is φ = 20476800.

The previous prime is 38404109. The next prime is 38404129. The reversal of 38404125 is 52140483.

It can be written as a sum of positive squares in 4 ways, for example, as 5433561 + 32970564 = 2331^2 + 5742^2 .

It is not a de Polignac number, because 38404125 - 24 = 38404109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38404129) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8229 + ... + 12021.

Almost surely, 238404125 is an apocalyptic number.

It is an amenable number.

38404125 is a deficient number, since it is larger than the sum of its proper divisors (33211419).

38404125 is an equidigital number, since it uses as much as digits as its factorization.

38404125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3820 (or 3801 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 38404125 is about 6197.1061795002. The cubic root of 38404125 is about 337.3851461039.

The spelling of 38404125 in words is "thirty-eight million, four hundred four thousand, one hundred twenty-five".

Divisors: 1 3 5 9 15 25 27 45 75 81 125 135 225 375 405 675 1125 2025 3375 3793 10125 11379 18965 34137 56895 94825 102411 170685 284475 307233 474125 512055 853425 1422375 1536165 2560275 4267125 7680825 12801375 38404125