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113762881 = 431263951
BaseRepresentation
bin1101100011111…
…10001001000001
321221001202100001
412301332021001
5213110403011
615142200001
72550653131
oct661761101
9257052301
10113762881
1159241811
1232123001
131a75201b
1411174ac1
159ec27c1
hex6c7e241

113762881 has 4 divisors (see below), whose sum is σ = 114027264. Its totient is φ = 113498500.

The previous prime is 113762879. The next prime is 113762921. The reversal of 113762881 is 188267311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 188267311 = 1491263539.

It is a cyclic number.

It is not a de Polignac number, because 113762881 - 21 = 113762879 is a prime.

It is a super-2 number, since 2×1137628812 = 25883986186840322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 113762881.

It is not an unprimeable number, because it can be changed into a prime (113762801) 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 3 ways as a sum of consecutive naturals, for example, 131545 + ... + 132406.

It is an arithmetic number, because the mean of its divisors is an integer number (28506816).

Almost surely, 2113762881 is an apocalyptic number.

It is an amenable number.

113762881 is a deficient number, since it is larger than the sum of its proper divisors (264383).

113762881 is an equidigital number, since it uses as much as digits as its factorization.

113762881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264382.

The product of its digits is 16128, while the sum is 37.

The square root of 113762881 is about 10665.9683573504. The cubic root of 113762881 is about 484.5443426538.

The spelling of 113762881 in words is "one hundred thirteen million, seven hundred sixty-two thousand, eight hundred eighty-one".

Divisors: 1 431 263951 113762881