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12908206080 = 21132571117107
BaseRepresentation
bin11000000010110001…
…11001100000000000
31020022121001210212200
430001120321200000
5202414000043310
65532511353200
7634606640610
oct140130714000
936277053780
1012908206080
115524389310
122602b22800
1312a9372383
148a64b2a40
1550836d9c0
hex301639800

12908206080 has 1152 divisors, whose sum is σ = 59609571840. Its totient is φ = 2500853760.

The previous prime is 12908206079. The next prime is 12908206099. The reversal of 12908206080 is 8060280921.

12908206080 is a `hidden beast` number, since 1 + 29 + 0 + 8 + 20 + 608 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1152).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 120637387 + ... + 120637493.

It is an arithmetic number, because the mean of its divisors is an integer number (51744420).

Almost surely, 212908206080 is an apocalyptic number.

12908206080 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 12908206080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29804785920).

12908206080 is an abundant number, since it is smaller than the sum of its proper divisors (46701365760).

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

12908206080 is a wasteful number, since it uses less digits than its factorization.

12908206080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The spelling of 12908206080 in words is "twelve billion, nine hundred eight million, two hundred six thousand, eighty".