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13152478680 = 23345111919423
BaseRepresentation
bin11000011111111001…
…01110010111011000
31020221121201010220000
430033330232113120
5203414013304210
610013035133000
7643634136615
oct141774562730
936847633800
1013152478680
11563a25a9a0
1226708a4160
131317b5ab83
148caadb50c
1551ea20ac0
hex30ff2e5d8

13152478680 has 320 divisors, whose sum is σ = 50766566400. Its totient is φ = 3020509440.

The previous prime is 13152478679. The next prime is 13152478687. The reversal of 13152478680 is 8687425131.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13152478687) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 667449 + ... + 686871.

It is an arithmetic number, because the mean of its divisors is an integer number (158645520).

Almost surely, 213152478680 is an apocalyptic number.

13152478680 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 13152478680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25383283200).

13152478680 is an abundant number, since it is smaller than the sum of its proper divisors (37614087720).

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

13152478680 is a wasteful number, since it uses less digits than its factorization.

13152478680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19476 (or 19463 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 13152478680 in words is "thirteen billion, one hundred fifty-two million, four hundred seventy-eight thousand, six hundred eighty".