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13025520000 = 27325479229
BaseRepresentation
bin11000010000110000…
…11010100110000000
31020121202210222022200
430020120122212000
5203134013120000
65552302033200
7640533043653
oct141030324600
936552728280
1013025520000
115584625a69
122636278800
1312c77687ac
148b7ccd89a
155137e3500
hex30861a980

13025520000 has 480 divisors, whose sum is σ = 47637876000. Its totient is φ = 3414528000.

The previous prime is 13025519993. The next prime is 13025520089. The reversal of 13025520000 is 2552031.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 56879886 + ... + 56880114.

It is an arithmetic number, because the mean of its divisors is an integer number (99245575).

Almost surely, 213025520000 is an apocalyptic number.

13025520000 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 13025520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23818938000).

13025520000 is an abundant number, since it is smaller than the sum of its proper divisors (34612356000).

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

13025520000 is an equidigital number, since it uses as much as digits as its factorization.

13025520000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348 (or 318 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The spelling of 13025520000 in words is "thirteen billion, twenty-five million, five hundred twenty thousand".