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109402697 = 235980621
BaseRepresentation
bin1101000010101…
…01101001001001
321121212020021202
412201111221021
5211001341242
614504513545
72465623205
oct641255111
9247766252
10109402697
1156833958
123077b8b5
1319886531
141075bb05
159910932
hex6855a49

109402697 has 8 divisors (see below), whose sum is σ = 116095680. Its totient is φ = 102871120.

The previous prime is 109402687. The next prime is 109402721. The reversal of 109402697 is 796204901.

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

It is a cyclic number.

It is not a de Polignac number, because 109402697 - 24 = 109402681 is a prime.

It is a super-2 number, since 2×1094026972 = 23937900221747618, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 109402697.

It is not an unprimeable number, because it can be changed into a prime (109402687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38954 + ... + 41667.

It is an arithmetic number, because the mean of its divisors is an integer number (14511960).

Almost surely, 2109402697 is an apocalyptic number.

It is an amenable number.

109402697 is a deficient number, since it is larger than the sum of its proper divisors (6692983).

109402697 is an equidigital number, since it uses as much as digits as its factorization.

109402697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80703.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 109402697 is about 10459.5744177285. The cubic root of 109402697 is about 478.2731598709.

The spelling of 109402697 in words is "one hundred nine million, four hundred two thousand, six hundred ninety-seven".

Divisors: 1 23 59 1357 80621 1854283 4756639 109402697