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83954525 = 5210930809
BaseRepresentation
bin1010000000100…
…00101101011101
312211222022221212
411000100231131
5132443021100
612155234205
72036413244
oct500205535
9184868855
1083954525
1143432306
1224148965
1314516345
14b21595b
157585635
hex5010b5d

83954525 has 12 divisors (see below), whose sum is σ = 105062100. Its totient is φ = 66545280.

The previous prime is 83954513. The next prime is 83954539. The reversal of 83954525 is 52545938.

It can be written as a sum of positive squares in 6 ways, for example, as 1907161 + 82047364 = 1381^2 + 9058^2 .

It is not a de Polignac number, because 83954525 - 216 = 83888989 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12680 + ... + 18129.

It is an arithmetic number, because the mean of its divisors is an integer number (8755175).

Almost surely, 283954525 is an apocalyptic number.

It is an amenable number.

83954525 is a deficient number, since it is larger than the sum of its proper divisors (21107575).

83954525 is a wasteful number, since it uses less digits than its factorization.

83954525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30928 (or 30923 counting only the distinct ones).

The product of its digits is 216000, while the sum is 41.

The square root of 83954525 is about 9162.6701894153. The cubic root of 83954525 is about 437.8728685193.

The spelling of 83954525 in words is "eighty-three million, nine hundred fifty-four thousand, five hundred twenty-five".

Divisors: 1 5 25 109 545 2725 30809 154045 770225 3358181 16790905 83954525