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107885921 = 11133124337
BaseRepresentation
bin1100110111000…
…11010101100001
321112000011122212
412123203111201
5210104322141
614412211505
72450005133
oct633432541
9245004585
10107885921
1155998320
1230169b95
1319475030
1410485053
1597112eb
hex66e3561

107885921 has 16 divisors (see below), whose sum is σ = 130841088. Its totient is φ = 87609600.

The previous prime is 107885917. The next prime is 107885929. The reversal of 107885921 is 129588701.

It is not a de Polignac number, because 107885921 - 22 = 107885917 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (107885929) 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, 7736 + ... + 16601.

It is an arithmetic number, because the mean of its divisors is an integer number (8177568).

Almost surely, 2107885921 is an apocalyptic number.

107885921 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

107885921 is a deficient number, since it is larger than the sum of its proper divisors (22955167).

107885921 is a wasteful number, since it uses less digits than its factorization.

107885921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24392.

The product of its (nonzero) digits is 40320, while the sum is 41.

The square root of 107885921 is about 10386.8147668089. The cubic root of 107885921 is about 476.0525814027.

The spelling of 107885921 in words is "one hundred seven million, eight hundred eighty-five thousand, nine hundred twenty-one".

Divisors: 1 11 13 31 143 341 403 4433 24337 267707 316381 754447 3480191 8298917 9807811 107885921