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107989642 = 261885161
BaseRepresentation
bin1100110111111…
…00101010001010
321112012102221101
412123330222022
5210121132032
614414332014
72450616415
oct633745212
9245172841
10107989642
1155a59242
12301ba00a
13194b02c7
14104b0b7c
159731de7
hex66fca8a

107989642 has 8 divisors (see below), whose sum is σ = 164640132. Its totient is φ = 53109600.

The previous prime is 107989639. The next prime is 107989697. The reversal of 107989642 is 246989701.

It can be written as a sum of positive squares in 2 ways, for example, as 76055841 + 31933801 = 8721^2 + 5651^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 107989592 and 107989601.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 442459 + ... + 442702.

Almost surely, 2107989642 is an apocalyptic number.

107989642 is a deficient number, since it is larger than the sum of its proper divisors (56650490).

107989642 is an equidigital number, since it uses as much as digits as its factorization.

107989642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885224.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 107989642 is about 10391.8064839565. The cubic root of 107989642 is about 476.2050907518.

The spelling of 107989642 in words is "one hundred seven million, nine hundred eighty-nine thousand, six hundred forty-two".

Divisors: 1 2 61 122 885161 1770322 53994821 107989642