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13060681920 = 2633511213312
BaseRepresentation
bin11000010100111101…
…00011000011000000
31020201012222101102000
430022132203003000
5203222013310140
65555555424000
7641440651566
oct141236430300
936635871360
1013060681920
1155a2461700
122645bb5000
131301b2a170
148bc843a36
1551693ba30
hex30a7a30c0

13060681920 has 1008 divisors, whose sum is σ = 56356483680. Its totient is φ = 2828390400.

The previous prime is 13060681891. The next prime is 13060681939. The reversal of 13060681920 is 2918606031.

13060681920 is a `hidden beast` number, since 1 + 30 + 606 + 8 + 19 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 143 ways as a sum of consecutive naturals, for example, 421312305 + ... + 421312335.

It is an arithmetic number, because the mean of its divisors is an integer number (55909210).

Almost surely, 213060681920 is an apocalyptic number.

13060681920 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 13060681920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28178241840).

13060681920 is an abundant number, since it is smaller than the sum of its proper divisors (43295801760).

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

13060681920 is a wasteful number, since it uses less digits than its factorization.

13060681920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The spelling of 13060681920 in words is "thirteen billion, sixty million, six hundred eighty-one thousand, nine hundred twenty".