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12170015130040 = 235887343010573
BaseRepresentation
bin1011000100011000110101…
…1011011100000110111000
31121002102221021112120102121
42301012031123130012320
53043343142333130130
641514454444211024
72364153214534405
oct261061533340670
947072837476377
1012170015130040
1139723022a6439
121446769539a74
136a3820813551
143010636732ac
15161883c58d7a
hexb118d6dc1b8

12170015130040 has 32 divisors (see below), whose sum is σ = 27413405074080. Its totient is φ = 4862517868672.

The previous prime is 12170015129999. The next prime is 12170015130061. The reversal of 12170015130040 is 4003151007121.

It is a super-2 number, since 2×121700151300402 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12170015129987 and 12170015130014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171469807 + ... + 171540766.

It is an arithmetic number, because the mean of its divisors is an integer number (856668908565).

Almost surely, 212170015130040 is an apocalyptic number.

12170015130040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12170015130040 is an abundant number, since it is smaller than the sum of its proper divisors (15243389944040).

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

12170015130040 is a wasteful number, since it uses less digits than its factorization.

12170015130040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343011471 (or 343011467 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 25.

Adding to 12170015130040 its reverse (4003151007121), we get a palindrome (16173166137161).

The spelling of 12170015130040 in words is "twelve trillion, one hundred seventy billion, fifteen million, one hundred thirty thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 887 1774 3548 4435 7096 8870 17740 35480 343010573 686021146 1372042292 1715052865 2744084584 3430105730 6860211460 13720422920 304250378251 608500756502 1217001513004 1521251891255 2434003026008 3042503782510 6085007565020 12170015130040