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13896870624 = 253571341479
BaseRepresentation
bin11001111000101000…
…10110101011100000
31022212111102011200000
430330110112223200
5211430044324444
610214550100000
71001243310540
oct147424265340
938774364600
1013896870624
11599146a64a
12283a04a600
131406140b90
1495b90d320
15565061469
hex33c516ae0

13896870624 has 576 divisors, whose sum is σ = 51778621440. Its totient is φ = 3568250880.

The previous prime is 13896870607. The next prime is 13896870629. The reversal of 13896870624 is 42607869831.

13896870624 = T9697 + T9698 + ... + T9983.

13896870624 is a `hidden beast` number, since 1 + 3 + 8 + 9 + 6 + 8 + 7 + 0 + 624 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13896870629) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 29012017 + ... + 29012495.

It is an arithmetic number, because the mean of its divisors is an integer number (89893440).

Almost surely, 213896870624 is an apocalyptic number.

13896870624 is a gapful number since it is divisible by the number (14) 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 13896870624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25889310720).

13896870624 is an abundant number, since it is smaller than the sum of its proper divisors (37881750816).

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

13896870624 is a wasteful number, since it uses less digits than its factorization.

13896870624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565 (or 545 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 13896870624 in words is "thirteen billion, eight hundred ninety-six million, eight hundred seventy thousand, six hundred twenty-four".