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113113940 = 22510155997
BaseRepresentation
bin1101011110111…
…11101101010100
321212211210011012
412233133231110
5212424121230
615120231352
72542311152
oct657375524
9255753135
10113113940
11589391a5
1231a6b558
131a585834
14110463d2
159de5395
hex6bdfb54

113113940 has 24 divisors (see below), whose sum is σ = 239895432. Its totient is φ = 44796800.

The previous prime is 113113939. The next prime is 113113961. The reversal of 113113940 is 49311311.

It can be written as a sum of positive squares in 4 ways, for example, as 32581264 + 80532676 = 5708^2 + 8974^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25979 + ... + 30018.

It is an arithmetic number, because the mean of its divisors is an integer number (9995643).

Almost surely, 2113113940 is an apocalyptic number.

113113940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113113940 is an abundant number, since it is smaller than the sum of its proper divisors (126781492).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

113113940 is a wasteful number, since it uses less digits than its factorization.

113113940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56107 (or 56105 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 113113940 is about 10635.5037492354. The cubic root of 113113940 is about 483.6212516285.

It can be divided in two parts, 11311 and 3940, that added together give a palindrome (15251).

The spelling of 113113940 in words is "one hundred thirteen million, one hundred thirteen thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 101 202 404 505 1010 2020 55997 111994 223988 279985 559970 1119940 5655697 11311394 22622788 28278485 56556970 113113940