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56706161 = 315213511
BaseRepresentation
bin1101100001010…
…0010001110001
310221200222020012
43120110101301
5104004044121
65343224305
71255665041
oct330242161
9127628205
1056706161
112a0111a6
1216ba8095
13b995955
147761721
154ea1c5b
hex3614471

56706161 has 8 divisors (see below), whose sum is σ = 58664448. Its totient is φ = 54756000.

The previous prime is 56706151. The next prime is 56706193. The reversal of 56706161 is 16160765.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-56706161 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56706151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14396 + ... + 17906.

It is an arithmetic number, because the mean of its divisors is an integer number (7333056).

Almost surely, 256706161 is an apocalyptic number.

It is an amenable number.

56706161 is a deficient number, since it is larger than the sum of its proper divisors (1958287).

56706161 is a wasteful number, since it uses less digits than its factorization.

56706161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4063.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 56706161 is about 7530.3493278865. The cubic root of 56706161 is about 384.1876637158.

The spelling of 56706161 in words is "fifty-six million, seven hundred six thousand, one hundred sixty-one".

Divisors: 1 31 521 3511 16151 108841 1829231 56706161