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80619117 = 3172368729
BaseRepresentation
bin1001100111000…
…10011001101101
312121200212122020
410303202121231
5131114302432
611555540353
71666152105
oct463423155
9177625566
1080619117
1141564377
1222bba6b9
1313919127
14a9c8205
15712722c
hex4ce266d

80619117 has 16 divisors (see below), whose sum is σ = 118765440. Its totient is φ = 48384512.

The previous prime is 80619113. The next prime is 80619139. The reversal of 80619117 is 71191608.

It is a cyclic number.

It is not a de Polignac number, because 80619117 - 22 = 80619113 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80619113) 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, 33192 + ... + 35537.

It is an arithmetic number, because the mean of its divisors is an integer number (7422840).

Almost surely, 280619117 is an apocalyptic number.

It is an amenable number.

80619117 is a deficient number, since it is larger than the sum of its proper divisors (38146323).

80619117 is a wasteful number, since it uses less digits than its factorization.

80619117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68772.

The product of its (nonzero) digits is 3024, while the sum is 33.

The square root of 80619117 is about 8978.8148995288. The cubic root of 80619117 is about 431.9956221693.

The spelling of 80619117 in words is "eighty million, six hundred nineteen thousand, one hundred seventeen".

Divisors: 1 3 17 23 51 69 391 1173 68729 206187 1168393 1580767 3505179 4742301 26873039 80619117