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12815084304 = 2433114396143
BaseRepresentation
bin10111110111101011…
…01010101100010000
31020002002211201211000
423323311222230100
5202221130144204
65515343422000
7632366263551
oct137365525420
936062751730
1012815084304
115486865570
1225978b4900
131292c99529
14897d92328
155000c7039
hex2fbd6ab10

12815084304 has 160 divisors (see below), whose sum is σ = 40225996800. Its totient is φ = 3873882240.

The previous prime is 12815084251. The next prime is 12815084309. The reversal of 12815084304 is 40348051821.

12815084304 is a `hidden beast` number, since 128 + 150 + 84 + 304 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (12815084309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2083057 + ... + 2089199.

It is an arithmetic number, because the mean of its divisors is an integer number (251412480).

Almost surely, 212815084304 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 12815084304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20112998400).

12815084304 is an abundant number, since it is smaller than the sum of its proper divisors (27410912496).

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

12815084304 is a wasteful number, since it uses less digits than its factorization.

12815084304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6610 (or 6598 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The spelling of 12815084304 in words is "twelve billion, eight hundred fifteen million, eighty-four thousand, three hundred four".

Divisors: 1 2 3 4 6 8 9 11 12 16 18 22 24 27 33 36 44 48 54 66 72 88 99 108 132 144 176 198 216 264 297 396 432 439 528 594 792 878 1188 1317 1584 1756 2376 2634 3512 3951 4752 4829 5268 6143 7024 7902 9658 10536 11853 12286 14487 15804 18429 19316 21072 23706 24572 28974 31608 36858 38632 43461 47412 49144 55287 57948 63216 67573 73716 77264 86922 94824 98288 110574 115896 130383 135146 147432 165861 173844 189648 202719 221148 231792 260766 270292 294864 331722 347688 405438 442296 521532 540584 608157 663444 695376 810876 884592 1043064 1081168 1216314 1326888 1621752 1824471 2086128 2432628 2653776 2696777 3243504 3648942 4865256 5393554 7297884 8090331 9730512 10787108 14595768 16180662 21574216 24270993 29191536 29664547 32361324 43148432 48541986 59329094 64722648 72812979 88993641 97083972 118658188 129445296 145625958 177987282 194167944 237316376 266980923 291251916 355974564 388335888 474632752 533961846 582503832 711949128 800942769 1067923692 1165007664 1423898256 1601885538 2135847384 3203771076 4271694768 6407542152 12815084304