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12954839040 = 2113251113983
BaseRepresentation
bin11000001000010101…
…10010100000000000
31020102211211000021100
430010022302200000
5203012414322130
65541255054400
7636014213013
oct140412624000
936384730240
1012954839040
11554873a350
122616671400
1312b5c1c040
148ac77137a
1550c4d0c60
hex3042b2800

12954839040 has 576 divisors, whose sum is σ = 52802305920. Its totient is φ = 2896035840.

The previous prime is 12954839011. The next prime is 12954839087. The reversal of 12954839040 is 4093845921.

12954839040 is a `hidden beast` number, since 12 + 9 + 548 + 3 + 90 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13178389 + ... + 13179371.

It is an arithmetic number, because the mean of its divisors is an integer number (91670670).

Almost surely, 212954839040 is an apocalyptic number.

12954839040 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 12954839040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26401152960).

12954839040 is an abundant number, since it is smaller than the sum of its proper divisors (39847466880).

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

12954839040 is a wasteful number, since it uses less digits than its factorization.

12954839040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040 (or 1017 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 12954839040 in words is "twelve billion, nine hundred fifty-four million, eight hundred thirty-nine thousand, forty".