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61679086 = 2738311503
BaseRepresentation
bin1110101101001…
…0010111101110
311022001121210121
43223102113232
5111242212321
610041555154
71346156260
oct353222756
9138047717
1061679086
11318a8457
12187a5aba
13ca17301
148297b30
155635441
hex3ad25ee

61679086 has 16 divisors (see below), whose sum is σ = 106020864. Its totient is φ = 26362584.

The previous prime is 61679081. The next prime is 61679141. The reversal of 61679086 is 68097616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61679081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390 + ... + 11113.

It is an arithmetic number, because the mean of its divisors is an integer number (6626304).

Almost surely, 261679086 is an apocalyptic number.

61679086 is a deficient number, since it is larger than the sum of its proper divisors (44341778).

61679086 is a wasteful number, since it uses less digits than its factorization.

61679086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11895.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 61679086 is about 7853.6033767946. The cubic root of 61679086 is about 395.1051068901.

The spelling of 61679086 in words is "sixty-one million, six hundred seventy-nine thousand, eighty-six".

Divisors: 1 2 7 14 383 766 2681 5362 11503 23006 80521 161042 4405649 8811298 30839543 61679086