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13149872640000 = 21233541719231
BaseRepresentation
bin1011111101011011000101…
…1111001101000000000000
31201120010010020022111002000
42333112301133031000000
53210421414343440000
643544545035224000
72525022050125605
oct277266137150000
951503106274060
1013149872640000
11420a91431a448
1215846498a8000
13745048a34915
143366589026ac
1517c0d1eaa000
hexbf5b17cd000

13149872640000 has 3120 divisors, whose sum is σ = 56155902359040. Its totient is φ = 3025797120000.

The previous prime is 13149872639999. The next prime is 13149872640011. The reversal of 13149872640000 is 4627894131.

13149872640000 is a `hidden beast` number, since 1 + 3 + 149 + 87 + 26 + 400 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 424189439985 + ... + 424189440015.

Almost surely, 213149872640000 is an apocalyptic number.

13149872640000 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 13149872640000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28077951179520).

13149872640000 is an abundant number, since it is smaller than the sum of its proper divisors (43006029719040).

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

13149872640000 is an equidigital number, since it uses as much as digits as its factorization.

13149872640000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 13149872640000 in words is "thirteen trillion, one hundred forty-nine billion, eight hundred seventy-two million, six hundred forty thousand".