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53161077 = 317720359
BaseRepresentation
bin1100101011001…
…0110001110101
310201000212021210
43022302301311
5102102123302
65135232033
71213601364
oct312626165
9121025253
1053161077
112800a782
1215978619
13b024178
1470bb7db
154a0166c
hex32b2c75

53161077 has 4 divisors (see below), whose sum is σ = 70881440. Its totient is φ = 35440716.

The previous prime is 53161049. The next prime is 53161099. The reversal of 53161077 is 77016135.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 53161077 - 26 = 53161013 is a prime.

It is a super-2 number, since 2×531610772 = 5652200215599858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53161007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8860177 + ... + 8860182.

It is an arithmetic number, because the mean of its divisors is an integer number (17720360).

Almost surely, 253161077 is an apocalyptic number.

It is an amenable number.

53161077 is a deficient number, since it is larger than the sum of its proper divisors (17720363).

53161077 is a wasteful number, since it uses less digits than its factorization.

53161077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17720362.

The product of its (nonzero) digits is 4410, while the sum is 30.

The square root of 53161077 is about 7291.1643103142. The cubic root of 53161077 is about 376.0087259368.

The spelling of 53161077 in words is "fifty-three million, one hundred sixty-one thousand, seventy-seven".

Divisors: 1 3 17720359 53161077