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13255576231680 = 28345314124221
BaseRepresentation
bin1100000011100100110111…
…1010011001111100000000
31201221012221220021022020000
43000321031322121330000
53214134410003403210
644105305550120000
72535453351622356
oct300711572317400
951835856238200
1013255576231680
114250727235382
1215a10297b0000
13751cc309c083
1433b8052557d6
1517ec1bcccac0
hexc0e4de99f00

13255576231680 has 360 divisors, whose sum is σ = 48960915932544. Its totient is φ = 3420793036800.

The previous prime is 13255576231657. The next prime is 13255576231771. The reversal of 13255576231680 is 8613267555231.

13255576231680 is a `hidden beast` number, since 1 + 3 + 2 + 5 + 5 + 5 + 7 + 623 + 1 + 6 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1151970 + ... + 5276190.

Almost surely, 213255576231680 is an apocalyptic number.

13255576231680 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 13255576231680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24480457966272).

13255576231680 is an abundant number, since it is smaller than the sum of its proper divisors (35705339700864).

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

13255576231680 is an equidigital number, since it uses as much as digits as its factorization.

13255576231680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4124285 (or 4124262 counting only the distinct ones).

The product of its (nonzero) digits is 9072000, while the sum is 54.

The spelling of 13255576231680 in words is "thirteen trillion, two hundred fifty-five billion, five hundred seventy-six million, two hundred thirty-one thousand, six hundred eighty".