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136105379 = 1959911959
BaseRepresentation
bin10000001110011…
…00110110100011
3100111002212110222
420013030312203
5234320333004
621301113255
73241606454
oct1007146643
9314085428
10136105379
116a911a93
12396b882b
1322275737
141410d12b
15be377be
hex81ccda3

136105379 has 8 divisors (see below), whose sum is σ = 143520000. Its totient is φ = 128715912.

The previous prime is 136105301. The next prime is 136105397. The reversal of 136105379 is 973501631.

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 136105379 - 216 = 136039843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136105399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5402 + ... + 17360.

It is an arithmetic number, because the mean of its divisors is an integer number (17940000).

Almost surely, 2136105379 is an apocalyptic number.

136105379 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

136105379 is a deficient number, since it is larger than the sum of its proper divisors (7414621).

136105379 is a wasteful number, since it uses less digits than its factorization.

136105379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12577.

The product of its (nonzero) digits is 17010, while the sum is 35.

The square root of 136105379 is about 11666.4210021754. The cubic root of 136105379 is about 514.3891069204.

The spelling of 136105379 in words is "one hundred thirty-six million, one hundred five thousand, three hundred seventy-nine".

Divisors: 1 19 599 11381 11959 227221 7163441 136105379