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12606680080 = 2451071472743
BaseRepresentation
bin10111011110110101…
…01010110000010000
31012112120200200222001
423233122222300100
5201304302230310
65442540523344
7624256004221
oct135732526020
935476620861
1012606680080
11538a162375
122539b50554
13125ba5bb17
14878423248
154dbb5c93a
hex2ef6aac10

12606680080 has 40 divisors (see below), whose sum is σ = 29584481472. Its totient is φ = 4995540864.

The previous prime is 12606680077. The next prime is 12606680081. The reversal of 12606680080 is 8008660621.

12606680080 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (12606680081) by changing a digit.

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, 727812 + ... + 744931.

Almost surely, 212606680080 is an apocalyptic number.

12606680080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12606680080 is an abundant number, since it is smaller than the sum of its proper divisors (16977801392).

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

12606680080 is a wasteful number, since it uses less digits than its factorization.

12606680080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472863 (or 1472857 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

It can be divided in two parts, 1260 and 6680080, that added together give a triangular number (6681340 = T3655).

The spelling of 12606680080 in words is "twelve billion, six hundred six million, six hundred eighty thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 107 214 428 535 856 1070 1712 2140 4280 8560 1472743 2945486 5890972 7363715 11781944 14727430 23563888 29454860 58909720 117819440 157583501 315167002 630334004 787917505 1260668008 1575835010 2521336016 3151670020 6303340040 12606680080