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38805957 = 3216725819
BaseRepresentation
bin1001010000001…
…0000111000101
32201000112202200
42110002013011
534413242312
63503425113
7650562621
oct224020705
981015680
1038805957
111a9a5543
1210bb5199
138069208
145222181
1536180dc
hex25021c5

38805957 has 12 divisors (see below), whose sum is σ = 56390880. Its totient is φ = 25714728.

The previous prime is 38805941. The next prime is 38805959. The reversal of 38805957 is 75950883.

It is not a de Polignac number, because 38805957 - 24 = 38805941 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38805959) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11407 + ... + 14412.

It is an arithmetic number, because the mean of its divisors is an integer number (4699240).

Almost surely, 238805957 is an apocalyptic number.

It is an amenable number.

38805957 is a deficient number, since it is larger than the sum of its proper divisors (17584923).

38805957 is a wasteful number, since it uses less digits than its factorization.

38805957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25992 (or 25989 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The square root of 38805957 is about 6229.4427519643. The cubic root of 38805957 is about 338.5577808646.

The spelling of 38805957 in words is "thirty-eight million, eight hundred five thousand, nine hundred fifty-seven".

Divisors: 1 3 9 167 501 1503 25819 77457 232371 4311773 12935319 38805957