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12108678368 = 253150923981
BaseRepresentation
bin10110100011011101…
…11100010011100000
31011020212121121001012
423101232330103200
5144244310201433
65321311000052
7606031032203
oct132156742340
934225547035
1012108678368
115154040306
12241b209028
1311ac826457
1482c22b93a
154ad08b848
hex2d1bbc4e0

12108678368 has 48 divisors (see below), whose sum is σ = 24657333120. Its totient is φ = 5847283200.

The previous prime is 12108678347. The next prime is 12108678391. The reversal of 12108678368 is 86387680121.

12108678368 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×121086783682 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492938 + ... + 516918.

It is an arithmetic number, because the mean of its divisors is an integer number (513694440).

Almost surely, 212108678368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12108678368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12328666560).

12108678368 is an abundant number, since it is smaller than the sum of its proper divisors (12548654752).

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

12108678368 is a wasteful number, since it uses less digits than its factorization.

12108678368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24531 (or 24523 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 50.

The spelling of 12108678368 in words is "twelve billion, one hundred eight million, six hundred seventy-eight thousand, three hundred sixty-eight".

Divisors: 1 2 4 8 16 31 32 62 124 248 496 509 992 1018 2036 4072 8144 15779 16288 23981 31558 47962 63116 95924 126232 191848 252464 383696 504928 743411 767392 1486822 2973644 5947288 11894576 12206329 23789152 24412658 48825316 97650632 195301264 378396199 390602528 756792398 1513584796 3027169592 6054339184 12108678368