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13193988195 = 35983894811
BaseRepresentation
bin11000100100110110…
…00100100001100011
31021001111211001020110
430102123010201203
5204010130110240
610021120542403
7644650022613
oct142233044143
937044731213
1013193988195
115660731683
122682781a03
13132363280b
148d2424a43
155234bec80
hex3126c4863

13193988195 has 16 divisors (see below), whose sum is σ = 21131880192. Its totient is φ = 7029627360.

The previous prime is 13193988193. The next prime is 13193988257. The reversal of 13193988195 is 59188939131.

It is not a de Polignac number, because 13193988195 - 21 = 13193988193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13193988193) 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, 432661 + ... + 462150.

It is an arithmetic number, because the mean of its divisors is an integer number (1320742512).

Almost surely, 213193988195 is an apocalyptic number.

13193988195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13193988195 is a deficient number, since it is larger than the sum of its proper divisors (7937891997).

13193988195 is an equidigital number, since it uses as much as digits as its factorization.

13193988195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895802.

The product of its digits is 2099520, while the sum is 57.

The spelling of 13193988195 in words is "thirteen billion, one hundred ninety-three million, nine hundred eighty-eight thousand, one hundred ninety-five".

Divisors: 1 3 5 15 983 2949 4915 14745 894811 2684433 4474055 13422165 879599213 2638797639 4397996065 13193988195