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113971793 = 138767061
BaseRepresentation
bin1101100101100…
…01001001010001
321221110100220112
412302301021101
5213134044133
615150451105
72552513165
oct662611121
9257410815
10113971793
1159374771
1232203a95
131a7c6140
14111caca5
15a014648
hex6cb1251

113971793 has 4 divisors (see below), whose sum is σ = 122738868. Its totient is φ = 105204720.

The previous prime is 113971787. The next prime is 113971811. The reversal of 113971793 is 397179311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 397179311 = 1999198689.

It can be written as a sum of positive squares in 2 ways, for example, as 7118224 + 106853569 = 2668^2 + 10337^2 .

It is a cyclic number.

It is not a de Polignac number, because 113971793 - 24 = 113971777 is a prime.

It is a super-3 number, since 3×1139717933 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 113971793.

It is not an unprimeable number, because it can be changed into a prime (113971763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4383518 + ... + 4383543.

It is an arithmetic number, because the mean of its divisors is an integer number (30684717).

Almost surely, 2113971793 is an apocalyptic number.

113971793 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

113971793 is a deficient number, since it is larger than the sum of its proper divisors (8767075).

113971793 is an equidigital number, since it uses as much as digits as its factorization.

113971793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8767074.

The product of its digits is 35721, while the sum is 41.

The square root of 113971793 is about 10675.7572565135. The cubic root of 113971793 is about 484.8407639648.

The spelling of 113971793 in words is "one hundred thirteen million, nine hundred seventy-one thousand, seven hundred ninety-three".

Divisors: 1 13 8767061 113971793