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84104657 = 7131138179
BaseRepresentation
bin1010000001101…
…01010111010001
312212020221220022
411000311113101
5133012322112
612202353225
72040610040
oct500652721
9185227808
1084104657
114352508a
12241bb815
1314569790
14b254557
1575b4d72
hex50355d1

84104657 has 16 divisors (see below), whose sum is σ = 104442240. Its totient is φ = 65947392.

The previous prime is 84104641. The next prime is 84104701. The reversal of 84104657 is 75640148.

It is not a de Polignac number, because 84104657 - 24 = 84104641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84104617) 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, 6194 + ... + 14372.

It is an arithmetic number, because the mean of its divisors is an integer number (6527640).

Almost surely, 284104657 is an apocalyptic number.

It is an amenable number.

84104657 is a deficient number, since it is larger than the sum of its proper divisors (20337583).

84104657 is a wasteful number, since it uses less digits than its factorization.

84104657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8312.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 84104657 is about 9170.8591200607. The cubic root of 84104657 is about 438.1337223666.

It can be divided in two parts, 84104 and 657, that multiplied together give a triangular number (55256328 = T10512).

The spelling of 84104657 in words is "eighty-four million, one hundred four thousand, six hundred fifty-seven".

Divisors: 1 7 13 91 113 791 1469 8179 10283 57253 106327 744289 924227 6469589 12014951 84104657