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61132137 = 31123239337
BaseRepresentation
bin1110100100110…
…0110101101001
311021000211112020
43221030311221
5111122212022
610022135053
71341420543
oct351146551
9137024466
1061132137
1131564530
1218581489
13c885381
148194693
15557835c
hex3a4cd69

61132137 has 32 divisors (see below), whose sum is σ = 93450240. Its totient is φ = 35185920.

The previous prime is 61132129. The next prime is 61132163. The reversal of 61132137 is 73123116.

It is not a de Polignac number, because 61132137 - 23 = 61132129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61130137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 181233 + ... + 181569.

It is an arithmetic number, because the mean of its divisors is an integer number (2920320).

Almost surely, 261132137 is an apocalyptic number.

It is an amenable number.

61132137 is a deficient number, since it is larger than the sum of its proper divisors (32318103).

61132137 is a wasteful number, since it uses less digits than its factorization.

61132137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613.

The product of its digits is 756, while the sum is 24.

The square root of 61132137 is about 7818.7043044228. The cubic root of 61132137 is about 393.9337520780.

The spelling of 61132137 in words is "sixty-one million, one hundred thirty-two thousand, one hundred thirty-seven".

Divisors: 1 3 11 23 33 69 239 253 337 717 759 1011 2629 3707 5497 7751 7887 11121 16491 23253 60467 80543 85261 181401 241629 255783 885973 1852489 2657919 5557467 20377379 61132137