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84276913 = 721990523
BaseRepresentation
bin1010000010111…
…11011010110001
312212120201012011
411001133122301
5133033330123
612210202521
72042225200
oct501373261
9185521164
1084276913
1143632546
1224283441
13145c9cc6
14b29b237
1575eae0d
hex505f6b1

84276913 has 12 divisors (see below), whose sum is σ = 103197360. Its totient is φ = 68434632.

The previous prime is 84276911. The next prime is 84276919. The reversal of 84276913 is 31967248.

It is not a de Polignac number, because 84276913 - 21 = 84276911 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84276911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44331 + ... + 46192.

It is an arithmetic number, because the mean of its divisors is an integer number (8599780).

Almost surely, 284276913 is an apocalyptic number.

It is an amenable number.

84276913 is a deficient number, since it is larger than the sum of its proper divisors (18920447).

84276913 is a wasteful number, since it uses less digits than its factorization.

84276913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90556 (or 90549 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 84276913 is about 9180.2458028094. The cubic root of 84276913 is about 438.4326344569.

The spelling of 84276913 in words is "eighty-four million, two hundred seventy-six thousand, nine hundred thirteen".

Divisors: 1 7 19 49 133 931 90523 633661 1719937 4435627 12039559 84276913