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12972916480 = 28516096299
BaseRepresentation
bin11000001010011111…
…01111111100000000
31020111002211102212011
430011033233330000
5203032031311410
65543142342304
7636323653636
oct140517577400
936432742764
1012972916480
115557967187
12262072a994
1312b98ab354
148b0d19356
1550dda218a
hex3053eff00

12972916480 has 72 divisors (see below), whose sum is σ = 31098438000. Its totient is φ = 5185118208.

The previous prime is 12972916469. The next prime is 12972916483. The reversal of 12972916480 is 8461927921.

12972916480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12972916483) 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, 2056371 + ... + 2062669.

It is an arithmetic number, because the mean of its divisors is an integer number (431922750).

Almost surely, 212972916480 is an apocalyptic number.

12972916480 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 12972916480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15549219000).

12972916480 is an abundant number, since it is smaller than the sum of its proper divisors (18125521520).

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

12972916480 is an equidigital number, since it uses as much as digits as its factorization.

12972916480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7929 (or 7915 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 49.

The spelling of 12972916480 in words is "twelve billion, nine hundred seventy-two million, nine hundred sixteen thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 640 1280 1609 3218 6299 6436 8045 12598 12872 16090 25196 25744 31495 32180 50392 51488 62990 64360 100784 102976 125980 128720 201568 205952 251960 257440 403136 411904 503920 514880 806272 1007840 1029760 1612544 2015680 2059520 4031360 8062720 10135091 20270182 40540364 50675455 81080728 101350910 162161456 202701820 324322912 405403640 648645824 810807280 1297291648 1621614560 2594583296 3243229120 6486458240 12972916480