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12495074320 = 245760320543
BaseRepresentation
bin10111010001100001…
…11011010000010000
31012020210200112122101
423220300323100100
5201042214334240
65423512450144
7621432244051
oct135060732020
935223615571
1012495074320
115332164303
1225086a9954
1312418b3901
14867690728
154d1e6439a
hex2e8c3b410

12495074320 has 40 divisors (see below), whose sum is σ = 29056283136. Its totient is φ = 4997129088.

The previous prime is 12495074309. The next prime is 12495074353. The reversal of 12495074320 is 2347059421.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×124950743202 (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 12495074320.

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, 597969 + ... + 618511.

Almost surely, 212495074320 is an apocalyptic number.

12495074320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12495074320 is an abundant number, since it is smaller than the sum of its proper divisors (16561208816).

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

12495074320 is a wasteful number, since it uses less digits than its factorization.

12495074320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28159 (or 28153 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 12495074320 in words is "twelve billion, four hundred ninety-five million, seventy-four thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 7603 15206 20543 30412 38015 41086 60824 76030 82172 102715 121648 152060 164344 205430 304120 328688 410860 608240 821720 1643440 156188429 312376858 624753716 780942145 1249507432 1561884290 2499014864 3123768580 6247537160 12495074320