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116672785 = 5171372621
BaseRepresentation
bin1101111010001…
…00100100010001
322010112120222021
412331010210101
5214332012120
615324411441
72614462615
oct675044421
9263476867
10116672785
115a949a99
12330a6b81
131b230668
14116d1345
15a399aaa
hex6f44911

116672785 has 8 divisors (see below), whose sum is σ = 148243176. Its totient is φ = 87847680.

The previous prime is 116672783. The next prime is 116672791. The reversal of 116672785 is 587276611.

It can be written as a sum of positive squares in 4 ways, for example, as 61214976 + 55457809 = 7824^2 + 7447^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 116672785 - 21 = 116672783 is a prime.

It is a super-2 number, since 2×1166727852 = 27225077519312450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116672783) 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, 686226 + ... + 686395.

It is an arithmetic number, because the mean of its divisors is an integer number (18530397).

Almost surely, 2116672785 is an apocalyptic number.

It is an amenable number.

116672785 is a deficient number, since it is larger than the sum of its proper divisors (31570391).

116672785 is a wasteful number, since it uses less digits than its factorization.

116672785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372643.

The product of its digits is 141120, while the sum is 43.

The square root of 116672785 is about 10801.5177174321. The cubic root of 116672785 is about 488.6409445699.

The spelling of 116672785 in words is "one hundred sixteen million, six hundred seventy-two thousand, seven hundred eighty-five".

Divisors: 1 5 17 85 1372621 6863105 23334557 116672785