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12754378560 = 263572111572
BaseRepresentation
bin10111110000011100…
…00101111101000000
31012220212121120012010
423320032011331000
5202110110103220
65505334332520
7631031300100
oct137016057500
935825546163
1012754378560
115455572430
12257b4ba140
131283533281
1488dcad200
154e9ad51e0
hex2f8385f40

12754378560 has 504 divisors, whose sum is σ = 51718427424. Its totient is φ = 2633379840.

The previous prime is 12754378547. The next prime is 12754378561. The reversal of 12754378560 is 6587345721.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12754378561) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 81238002 + ... + 81238158.

Almost surely, 212754378560 is an apocalyptic number.

12754378560 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 12754378560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25859213712).

12754378560 is an abundant number, since it is smaller than the sum of its proper divisors (38964048864).

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

12754378560 is a wasteful number, since it uses less digits than its factorization.

12754378560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 48.

The spelling of 12754378560 in words is "twelve billion, seven hundred fifty-four million, three hundred seventy-eight thousand, five hundred sixty".