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113664281 = 1075092087
BaseRepresentation
bin1101100011001…
…10000100011001
321220212202002012
412301212010121
5213044224111
615140115305
72550062513
oct661460431
9256782065
10113664281
1159184725
1232095b35
131a719193
141114abb3
159ea348b
hex6c66119

113664281 has 8 divisors (see below), whose sum is σ = 115007040. Its totient is φ = 112326928.

The previous prime is 113664263. The next prime is 113664293. The reversal of 113664281 is 182466311.

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 113664281 - 26 = 113664217 is a prime.

It is a super-2 number, since 2×1136642812 = 25839137550493922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113664211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53420 + ... + 55506.

It is an arithmetic number, because the mean of its divisors is an integer number (14375880).

Almost surely, 2113664281 is an apocalyptic number.

It is an amenable number.

113664281 is a deficient number, since it is larger than the sum of its proper divisors (1342759).

113664281 is a wasteful number, since it uses less digits than its factorization.

113664281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2703.

The product of its digits is 6912, while the sum is 32.

The square root of 113664281 is about 10661.3451777907. The cubic root of 113664281 is about 484.4043149015.

The spelling of 113664281 in words is "one hundred thirteen million, six hundred sixty-four thousand, two hundred eighty-one".

Divisors: 1 107 509 2087 54463 223309 1062283 113664281