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83101538 = 21316719139
BaseRepresentation
bin1001111010000…
…00011101100010
312210100222212202
410331000131202
5132233222123
612125053202
72026231352
oct475003542
9183328782
1083101538
11429aa463
12239b7202
13142a8010
14b072b62
157467a28
hex4f40762

83101538 has 16 divisors (see below), whose sum is σ = 135051840. Its totient is φ = 38122896.

The previous prime is 83101531. The next prime is 83101583. The reversal of 83101538 is 83510138.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 83101538.

It is not an unprimeable number, because it can be changed into a prime (83101531) 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, 5228 + ... + 13911.

It is an arithmetic number, because the mean of its divisors is an integer number (8440740).

Almost surely, 283101538 is an apocalyptic number.

83101538 is a deficient number, since it is larger than the sum of its proper divisors (51950302).

83101538 is a wasteful number, since it uses less digits than its factorization.

83101538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19321.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 83101538 is about 9116.0044975856. The cubic root of 83101538 is about 436.3848725434.

The spelling of 83101538 in words is "eighty-three million, one hundred one thousand, five hundred thirty-eight".

Divisors: 1 2 13 26 167 334 2171 4342 19139 38278 248807 497614 3196213 6392426 41550769 83101538