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12500874240 = 210351634993
BaseRepresentation
bin10111010010001110…
…00011010000000000
31012021012121012122020
423221013003100000
5201100210433430
65424241041440
7621532451331
oct135107032000
935235535566
1012500874240
115335465928
12250a626280
131242b6480a
14868360288
154d270cb10
hex2e91c3400

12500874240 has 176 divisors, whose sum is σ = 40236618048. Its totient is φ = 3312451584.

The previous prime is 12500874181. The next prime is 12500874259. The reversal of 12500874240 is 4247800521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2501184 + ... + 2506176.

It is an arithmetic number, because the mean of its divisors is an integer number (228617148).

Almost surely, 212500874240 is an apocalyptic number.

12500874240 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 12500874240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20118309024).

12500874240 is an abundant number, since it is smaller than the sum of its proper divisors (27735743808).

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

12500874240 is a wasteful number, since it uses less digits than its factorization.

12500874240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5184 (or 5166 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 33.

The spelling of 12500874240 in words is "twelve billion, five hundred million, eight hundred seventy-four thousand, two hundred forty".