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55670161 = 1032272381
BaseRepresentation
bin1101010001011…
…1010110010001
310212202100002211
43110113112101
5103222421121
65305112121
71244121451
oct324272621
9125670084
1055670161
11294738a8
1216788641
13b6c2231
147571d61
154d49ce1
hex3517591

55670161 has 8 divisors (see below), whose sum is σ = 56481984. Its totient is φ = 54863760.

The previous prime is 55670149. The next prime is 55670183. The reversal of 55670161 is 16107655.

55670161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 55670161 - 225 = 22115729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55670101) 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 7 ways as a sum of consecutive naturals, for example, 22191 + ... + 24571.

It is an arithmetic number, because the mean of its divisors is an integer number (7060248).

Almost surely, 255670161 is an apocalyptic number.

It is an amenable number.

55670161 is a deficient number, since it is larger than the sum of its proper divisors (811823).

55670161 is a wasteful number, since it uses less digits than its factorization.

55670161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2711.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 55670161 is about 7461.2439311418. The cubic root of 55670161 is about 381.8336149383.

The spelling of 55670161 in words is "fifty-five million, six hundred seventy thousand, one hundred sixty-one".

Divisors: 1 103 227 2381 23381 245243 540487 55670161