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117186406 = 2173446659
BaseRepresentation
bin1101111110000…
…01111101100110
322011111200112021
412333001331212
5214444431111
615343413354
72622032221
oct677017546
9264450467
10117186406
116016a977
12332b425a
131b38038c
14117c65b8
15a44bd71
hex6fc1f66

117186406 has 8 divisors (see below), whose sum is σ = 186119640. Its totient is φ = 55146528.

The previous prime is 117186401. The next prime is 117186409. The reversal of 117186406 is 604681711.

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

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 3446659 = 117186406 / (1 + 1 + 7 + 1 + 8 + 6 + 4 + 0 + 6).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117186401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1723296 + ... + 1723363.

It is an arithmetic number, because the mean of its divisors is an integer number (23264955).

Almost surely, 2117186406 is an apocalyptic number.

117186406 is the 6847-th centered pentagonal number.

117186406 is a deficient number, since it is larger than the sum of its proper divisors (68933234).

117186406 is a wasteful number, since it uses less digits than its factorization.

117186406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3446678.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 117186406 is about 10825.2670174920. The cubic root of 117186406 is about 489.3569323449.

The spelling of 117186406 in words is "one hundred seventeen million, one hundred eighty-six thousand, four hundred six".

Divisors: 1 2 17 34 3446659 6893318 58593203 117186406