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113944657 = 281405497
BaseRepresentation
bin1101100101010…
…10100001010001
321221101222200111
412302222201101
5213132212112
615150121321
72552341111
oct662524121
9257358614
10113944657
1159356342
12321b0241
131a7b6998
14111c1041
15a00b5a7
hex6caa851

113944657 has 4 divisors (see below), whose sum is σ = 114350436. Its totient is φ = 113538880.

The previous prime is 113944651. The next prime is 113944667. The reversal of 113944657 is 756449311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 756449311 = 2926084459.

It can be written as a sum of positive squares in 2 ways, for example, as 49688401 + 64256256 = 7049^2 + 8016^2 .

It is a cyclic number.

It is not a de Polignac number, because 113944657 - 27 = 113944529 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113944651) 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, 202468 + ... + 203029.

It is an arithmetic number, because the mean of its divisors is an integer number (28587609).

Almost surely, 2113944657 is an apocalyptic number.

It is an amenable number.

113944657 is a deficient number, since it is larger than the sum of its proper divisors (405779).

113944657 is an equidigital number, since it uses as much as digits as its factorization.

113944657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405778.

The product of its digits is 90720, while the sum is 40.

The square root of 113944657 is about 10674.4862639848. The cubic root of 113944657 is about 484.8022816850.

It can be divided in two parts, 1139 and 44657, that added together give a square (45796 = 2142).

The spelling of 113944657 in words is "one hundred thirteen million, nine hundred forty-four thousand, six hundred fifty-seven".

Divisors: 1 281 405497 113944657