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55738161 = 326193129
BaseRepresentation
bin1101010010011…
…1111100110001
310212212210101100
43110213330301
5103232110121
65310355013
71244523633
oct324477461
9125783340
1055738161
112950a9a6
12167bba69
13b71717b
14758ca53
154d60026
hex3527f31

55738161 has 6 divisors (see below), whose sum is σ = 80510690. Its totient is φ = 37158768.

The previous prime is 55738159. The next prime is 55738183. The reversal of 55738161 is 16183755.

55738161 is a `hidden beast` number, since 5 + 573 + 81 + 6 + 1 = 666.

55738161 is nontrivially palindromic in base 13.

It can be written as a sum of positive squares in only one way, i.e., 55219761 + 518400 = 7431^2 + 720^2 .

It is not a de Polignac number, because 55738161 - 21 = 55738159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55738561) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3096556 + ... + 3096573.

Almost surely, 255738161 is an apocalyptic number.

It is an amenable number.

55738161 is a deficient number, since it is larger than the sum of its proper divisors (24772529).

55738161 is a wasteful number, since it uses less digits than its factorization.

55738161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6193135 (or 6193132 counting only the distinct ones).

The product of its digits is 25200, while the sum is 36.

The square root of 55738161 is about 7465.7994213614. The cubic root of 55738161 is about 381.9890190826.

The spelling of 55738161 in words is "fifty-five million, seven hundred thirty-eight thousand, one hundred sixty-one".

Divisors: 1 3 9 6193129 18579387 55738161