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12750636480 = 263517292929
BaseRepresentation
bin10111101111111111…
…10100010111000000
31012220121120110000120
423313333310113000
5202103130331410
65505122220240
7630654423201
oct136777642700
935817513016
1012750636480
1154534469aa
12257a1b4680
131282822c1a
1488d5b75a8
154e95e6570
hex2f7ff45c0

12750636480 has 336 divisors, whose sum is σ = 44441485920. Its totient is φ = 3086483456.

The previous prime is 12750636467. The next prime is 12750636499. The reversal of 12750636480 is 8463605721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13724656 + ... + 13725584.

Almost surely, 212750636480 is an apocalyptic number.

12750636480 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 12750636480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22220742960).

12750636480 is an abundant number, since it is smaller than the sum of its proper divisors (31690849440).

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

12750636480 is a wasteful number, since it uses less digits than its factorization.

12750636480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024 (or 985 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

It can be divided in two parts, 12750 and 636480, that added together give a triangular number (649230 = T1139).

The spelling of 12750636480 in words is "twelve billion, seven hundred fifty million, six hundred thirty-six thousand, four hundred eighty".