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56738907 = 332391367
BaseRepresentation
bin1101100001110…
…0010001011011
310221202122011000
43120130101123
5104011121112
65344040043
71256162361
oct330342133
9127678130
1056738907
112a033865
1217003023
13b9a7824
14776d631
154eab7dc
hex361c45b

56738907 has 16 divisors (see below), whose sum is σ = 87713280. Its totient is φ = 36180936.

The previous prime is 56738881. The next prime is 56738923. The reversal of 56738907 is 70983765.

It is a happy number.

56738907 is a `hidden beast` number, since 567 + 3 + 89 + 0 + 7 = 666.

56738907 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56738907 - 211 = 56736859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56738977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45063 + ... + 46304.

It is an arithmetic number, because the mean of its divisors is an integer number (5482080).

Almost surely, 256738907 is an apocalyptic number.

56738907 is a deficient number, since it is larger than the sum of its proper divisors (30974373).

56738907 is a wasteful number, since it uses less digits than its factorization.

56738907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91399 (or 91393 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 56738907 is about 7532.5232824068. The cubic root of 56738907 is about 384.2616015276.

The spelling of 56738907 in words is "fifty-six million, seven hundred thirty-eight thousand, nine hundred seven".

Divisors: 1 3 9 23 27 69 207 621 91367 274101 822303 2101441 2466909 6304323 18912969 56738907