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12893799260 = 22517181209519
BaseRepresentation
bin11000000001000011…
…11100001101011100
31020021120221212102202
430000201330031130
5202401303034020
65531234511032
7634343325326
oct140041741534
936246855382
1012893799260
115517239251
1225ba135478
1312a6399a24
148a4602616
15506e74e75
hex30087c35c

12893799260 has 48 divisors (see below), whose sum is σ = 28828275840. Its totient is φ = 4827294720.

The previous prime is 12893799229. The next prime is 12893799263. The reversal of 12893799260 is 6299739821.

It is a junction number, because it is equal to n+sod(n) for n = 12893799196 and 12893799205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12893799263) 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, 43220 + ... + 166299.

It is an arithmetic number, because the mean of its divisors is an integer number (600589080).

Almost surely, 212893799260 is an apocalyptic number.

12893799260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12893799260 is an abundant number, since it is smaller than the sum of its proper divisors (15934476580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12893799260 is a wasteful number, since it uses less digits than its factorization.

12893799260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209726 (or 209724 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 56.

The spelling of 12893799260 in words is "twelve billion, eight hundred ninety-three million, seven hundred ninety-nine thousand, two hundred sixty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 181 340 362 724 905 1810 3077 3620 6154 12308 15385 30770 61540 209519 419038 838076 1047595 2095190 3561823 4190380 7123646 14247292 17809115 35618230 37922939 71236460 75845878 151691756 189614695 379229390 644689963 758458780 1289379926 2578759852 3223449815 6446899630 12893799260