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109688319 = 32137331279
BaseRepresentation
bin1101000100110…
…11010111111111
321122101202002100
412202123113333
5211040011234
614515000143
72501223006
oct642332777
9248352070
10109688319
1156a09504
1230899053
1319956540
14107d3c3d
15996a399
hex689b5ff

109688319 has 24 divisors (see below), whose sum is σ = 170992640. Its totient is φ = 67355712.

The previous prime is 109688303. The next prime is 109688329. The reversal of 109688319 is 913886901.

It is not a de Polignac number, because 109688319 - 24 = 109688303 is a prime.

It is a super-2 number, since 2×1096883192 = 24063054650091522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109688329) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85122 + ... + 86400.

Almost surely, 2109688319 is an apocalyptic number.

109688319 is a deficient number, since it is larger than the sum of its proper divisors (61304321).

109688319 is a wasteful number, since it uses less digits than its factorization.

109688319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2031 (or 2028 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The square root of 109688319 is about 10473.2191326258. The cubic root of 109688319 is about 478.6890138123.

The spelling of 109688319 in words is "one hundred nine million, six hundred eighty-eight thousand, three hundred nineteen".

Divisors: 1 3 9 13 39 117 733 1279 2199 3837 6597 9529 11511 16627 28587 49881 85761 149643 937507 2812521 8437563 12187591 36562773 109688319