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13137880332720 = 2435111321767103251
BaseRepresentation
bin1011111100101110011010…
…1100001011100110110000
31201111222011110200011011010
42333023212230023212300
53210222334331121340
643535243042350520
72524115631161613
oct277134654134660
951458143604133
1013137880332720
11420581aa424a0
12158226165b440
13743b87364700
14335c3bd2817a
1517bb2e258b80
hexbf2e6b0b9b0

13137880332720 has 1920 divisors, whose sum is σ = 52410773495808. Its totient is φ = 2688491520000.

The previous prime is 13137880332713. The next prime is 13137880332767. The reversal of 13137880332720 is 2723308873131.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 13137880332720.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 52342152595 + ... + 52342152845.

Almost surely, 213137880332720 is an apocalyptic number.

13137880332720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13137880332720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26205386747904).

13137880332720 is an abundant number, since it is smaller than the sum of its proper divisors (39272893163088).

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

13137880332720 is a wasteful number, since it uses less digits than its factorization.

13137880332720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491 (or 472 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 48.

The spelling of 13137880332720 in words is "thirteen trillion, one hundred thirty-seven billion, eight hundred eighty million, three hundred thirty-two thousand, seven hundred twenty".