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109378692 = 22324796343
BaseRepresentation
bin1101000010011…
…11110010000100
321121211000100200
412201033302010
5211000104232
614504210500
72465463213
oct641176204
9247730320
10109378692
1156817915
1230769a30
1319878627
141075307a
15990877c
hex684fc84

109378692 has 36 divisors (see below), whose sum is σ = 277105920. Its totient is φ = 36377712.

The previous prime is 109378681. The next prime is 109378699. The reversal of 109378692 is 296873901.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (109378699) 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, 14073 + ... + 20415.

Almost surely, 2109378692 is an apocalyptic number.

109378692 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

109378692 is an abundant number, since it is smaller than the sum of its proper divisors (167727228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

109378692 is a wasteful number, since it uses less digits than its factorization.

With its successor (109378693) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (6827).

109378692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6832 (or 6827 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 109378692 is about 10458.4268415474. The cubic root of 109378692 is about 478.2381766169.

The spelling of 109378692 in words is "one hundred nine million, three hundred seventy-eight thousand, six hundred ninety-two".

Divisors: 1 2 3 4 6 9 12 18 36 479 958 1437 1916 2874 4311 5748 6343 8622 12686 17244 19029 25372 38058 57087 76116 114174 228348 3038297 6076594 9114891 12153188 18229782 27344673 36459564 54689346 109378692