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12126724160 = 265194148647
BaseRepresentation
bin10110100101100111…
…10010000001000000
31011022010120102012212
423102303302001000
5144313420133120
65323153441252
7606340311635
oct132263620100
934263512185
1012126724160
115163246391
122425270228
1311b34a4235
148307a818c
154ae9536c5
hex2d2cf2040

12126724160 has 112 divisors (see below), whose sum is σ = 31138611840. Its totient is φ = 4483215360.

The previous prime is 12126724153. The next prime is 12126724193. The reversal of 12126724160 is 6142762121.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 224957 + ... + 273603.

It is an arithmetic number, because the mean of its divisors is an integer number (278023320).

Almost surely, 212126724160 is an apocalyptic number.

12126724160 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 12126724160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15569305920).

12126724160 is an abundant number, since it is smaller than the sum of its proper divisors (19011887680).

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

12126724160 is a wasteful number, since it uses less digits than its factorization.

12126724160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48724 (or 48714 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The spelling of 12126724160 in words is "twelve billion, one hundred twenty-six million, seven hundred twenty-four thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 16 19 20 32 38 40 41 64 76 80 82 95 152 160 164 190 205 304 320 328 380 410 608 656 760 779 820 1216 1312 1520 1558 1640 2624 3040 3116 3280 3895 6080 6232 6560 7790 12464 13120 15580 24928 31160 48647 49856 62320 97294 124640 194588 243235 249280 389176 486470 778352 924293 972940 1556704 1848586 1945880 1994527 3113408 3697172 3891760 3989054 4621465 7394344 7783520 7978108 9242930 9972635 14788688 15567040 15956216 18485860 19945270 29577376 31912432 36971720 37896013 39890540 59154752 63824864 73943440 75792026 79781080 127649728 147886880 151584052 159562160 189480065 295773760 303168104 319124320 378960130 606336208 638248640 757920260 1212672416 1515840520 2425344832 3031681040 6063362080 12126724160