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10161939705 = 35976984151
BaseRepresentation
bin10010111011011001…
…01110010011111001
3222020012111000122020
421131230232103321
5131302424032310
64400205345053
7506552030241
oct113554562371
928205430566
1010161939705
114345171785
121b77268189
13c5c409a98
146c5878b21
153e71ea170
hex25db2e4f9

10161939705 has 16 divisors (see below), whose sum is σ = 16426725504. Its totient is φ = 5363827200.

The previous prime is 10161939691. The next prime is 10161939707. The reversal of 10161939705 is 50793916101.

It is not a de Polignac number, because 10161939705 - 25 = 10161939673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10161939707) 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, 3490621 + ... + 3493530.

It is an arithmetic number, because the mean of its divisors is an integer number (1026670344).

Almost surely, 210161939705 is an apocalyptic number.

10161939705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10161939705 is a deficient number, since it is larger than the sum of its proper divisors (6264785799).

10161939705 is an equidigital number, since it uses as much as digits as its factorization.

10161939705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6984256.

The product of its (nonzero) digits is 51030, while the sum is 42.

The spelling of 10161939705 in words is "ten billion, one hundred sixty-one million, nine hundred thirty-nine thousand, seven hundred five".

Divisors: 1 3 5 15 97 291 485 1455 6984151 20952453 34920755 104762265 677462647 2032387941 3387313235 10161939705