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108691434 = 2326439391
BaseRepresentation
bin1100111101001…
…11111111101010
321120112002121200
412132213333222
5210311111214
614441345030
72456601435
oct636477752
9246462550
10108691434
1156398535
1230498176
1319697877
141061481c
15981ed09
hex67a7fea

108691434 has 24 divisors (see below), whose sum is σ = 235889472. Its totient is φ = 36170280.

The previous prime is 108691417. The next prime is 108691469. The reversal of 108691434 is 434196801.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6879 + ... + 16269.

It is an arithmetic number, because the mean of its divisors is an integer number (9828728).

Almost surely, 2108691434 is an apocalyptic number.

108691434 is an abundant number, since it is smaller than the sum of its proper divisors (127198038).

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

108691434 is a wasteful number, since it uses less digits than its factorization.

108691434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10042 (or 10039 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 108691434 is about 10425.5184043768. The cubic root of 108691434 is about 477.2344350825.

The spelling of 108691434 in words is "one hundred eight million, six hundred ninety-one thousand, four hundred thirty-four".

Divisors: 1 2 3 6 9 18 643 1286 1929 3858 5787 9391 11574 18782 28173 56346 84519 169038 6038413 12076826 18115239 36230478 54345717 108691434