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12580270080 = 21235729251
BaseRepresentation
bin10111011011101011…
…11011000000000000
31012110201222221020220
423231311323000000
5201231022120310
65440154503040
7623515350150
oct135565730000
935421887226
1012580270080
115376264124
122531134a80
131256442bc1
14874b0a760
154d9692670
hex2edd7b000

12580270080 has 208 divisors, whose sum is σ = 46003801344. Its totient is φ = 2875392000.

The previous prime is 12580270067. The next prime is 12580270081. The reversal of 12580270080 is 8007208521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12580270081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 415455 + ... + 444705.

Almost surely, 212580270080 is an apocalyptic number.

12580270080 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 12580270080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23001900672).

12580270080 is an abundant number, since it is smaller than the sum of its proper divisors (33423531264).

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

12580270080 is an equidigital number, since it uses as much as digits as its factorization.

12580270080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29290 (or 29268 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 33.

The spelling of 12580270080 in words is "twelve billion, five hundred eighty million, two hundred seventy thousand, eighty".