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116921707 = 729219861
BaseRepresentation
bin1101111100000…
…01010101101011
322011000020102121
412332001111223
5214412443312
615334012111
72616550420
oct676012553
9264006377
10116921707
115aaaa011
12331a7037
131b2b9a56
1411757d47
15a3e8707
hex6f8156b

116921707 has 12 divisors (see below), whose sum is σ = 138398416. Its totient is φ = 96757920.

The previous prime is 116921683. The next prime is 116921711. The reversal of 116921707 is 707129611.

It is not a de Polignac number, because 116921707 - 215 = 116888939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116921747) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4044 + ... + 15817.

Almost surely, 2116921707 is an apocalyptic number.

116921707 is a deficient number, since it is larger than the sum of its proper divisors (21476709).

116921707 is an equidigital number, since it uses as much as digits as its factorization.

116921707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19926 (or 19897 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 34.

The square root of 116921707 is about 10813.0341255357. The cubic root of 116921707 is about 488.9882037349.

The spelling of 116921707 in words is "one hundred sixteen million, nine hundred twenty-one thousand, seven hundred seven".

Divisors: 1 7 29 203 841 5887 19861 139027 575969 4031783 16703101 116921707