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117161405 = 559939119
BaseRepresentation
bin1101111101110…
…11110110111101
322011110102020022
412332323312331
5214443131110
615343101525
72621566304
oct676736675
9264412208
10117161405
1160153109
12332a18a5
131b371b9a
14117bb43b
15a444755
hex6fbbdbd

117161405 has 8 divisors (see below), whose sum is σ = 140832000. Its totient is φ = 93570256.

The previous prime is 117161393. The next prime is 117161411. The reversal of 117161405 is 504161711.

It is a happy number.

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 117161405 - 212 = 117157309 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16565 + ... + 22554.

It is an arithmetic number, because the mean of its divisors is an integer number (17604000).

Almost surely, 2117161405 is an apocalyptic number.

It is an amenable number.

117161405 is a deficient number, since it is larger than the sum of its proper divisors (23670595).

117161405 is an equidigital number, since it uses as much as digits as its factorization.

117161405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39723.

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 117161405 is about 10824.1122037791. The cubic root of 117161405 is about 489.3221294377.

The spelling of 117161405 in words is "one hundred seventeen million, one hundred sixty-one thousand, four hundred five".

Divisors: 1 5 599 2995 39119 195595 23432281 117161405