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61314279 = 3132117451
BaseRepresentation
bin1110100111100…
…1010011100111
311021101002101020
43221321103213
5111144024104
610030102223
71343106555
oct351712347
9137332336
1061314279
1131679364
121864a973
13c91a250
148200bd5
1555b22d9
hex3a794e7

61314279 has 16 divisors (see below), whose sum is σ = 88470144. Its totient is φ = 37548000.

The previous prime is 61314277. The next prime is 61314283. The reversal of 61314279 is 97241316.

It is not a de Polignac number, because 61314279 - 21 = 61314277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61314271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4504 + ... + 11954.

It is an arithmetic number, because the mean of its divisors is an integer number (5529384).

Almost surely, 261314279 is an apocalyptic number.

61314279 is a deficient number, since it is larger than the sum of its proper divisors (27155865).

61314279 is a wasteful number, since it uses less digits than its factorization.

61314279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7678.

The product of its digits is 9072, while the sum is 33.

The square root of 61314279 is about 7830.3434790563. The cubic root of 61314279 is about 394.3246034458.

The spelling of 61314279 in words is "sixty-one million, three hundred fourteen thousand, two hundred seventy-nine".

Divisors: 1 3 13 39 211 633 2743 7451 8229 22353 96863 290589 1572161 4716483 20438093 61314279