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116423681 = 11103211487
BaseRepresentation
bin1101111000001…
…11110000000001
322010001221021012
412330013300001
5214301024211
615315210305
72612404433
oct674076001
9263057235
10116423681
115a799920
1232ba6995
131b17416a
1411668653
15a34ad8b
hex6f07c01

116423681 has 16 divisors (see below), whose sum is σ = 129113088. Its totient is φ = 104101200.

The previous prime is 116423647. The next prime is 116423687. The reversal of 116423681 is 186324611.

It is a cyclic number.

It is not a de Polignac number, because 116423681 - 226 = 49314817 is a prime.

It is a super-2 number, since 2×1164236812 = 27108946995179522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116423687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238820 + ... + 239306.

It is an arithmetic number, because the mean of its divisors is an integer number (8069568).

Almost surely, 2116423681 is an apocalyptic number.

116423681 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

116423681 is a deficient number, since it is larger than the sum of its proper divisors (12689407).

116423681 is a wasteful number, since it uses less digits than its factorization.

116423681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812.

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

The square root of 116423681 is about 10789.9805838565. The cubic root of 116423681 is about 488.2929366913.

The spelling of 116423681 in words is "one hundred sixteen million, four hundred twenty-three thousand, six hundred eighty-one".

Divisors: 1 11 103 211 487 1133 2321 5357 21733 50161 102757 239063 551771 1130327 10583971 116423681