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13250400000 = 283555521
BaseRepresentation
bin11000101011100100…
…10000111100000000
31021012102222001200120
430111302100330000
5204114100300000
610030454020240
7646233353535
oct142562207400
937172861616
1013250400000
11568a561702
122699647680
131332224496
148d9b0ad8c
155284146a0
hex315c90f00

13250400000 has 216 divisors, whose sum is σ = 44086897008. Its totient is φ = 3532800000.

The previous prime is 13250399977. The next prime is 13250400019. The reversal of 13250400000 is 405231.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2397240 + ... + 2402760.

Almost surely, 213250400000 is an apocalyptic number.

13250400000 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 13250400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22043448504).

13250400000 is an abundant number, since it is smaller than the sum of its proper divisors (30836497008).

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

13250400000 is an frugal number, since it uses more digits than its factorization.

13250400000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5565 (or 5531 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

Adding to 13250400000 its reverse (405231), we get a palindrome (13250805231).

The spelling of 13250400000 in words is "thirteen billion, two hundred fifty million, four hundred thousand".