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29688180874992 = 2432319297158857
BaseRepresentation
bin1101100000000010100010…
…11110011001111011110000
310220010011101100222222020100
412300001101132121323300
512342402343300444432
6143050321221112400
76152620540511253
oct660012136317360
9126104340888210
1029688180874992
119506761153252
1233b5927858700
131374777a98063
14748cb667109a
153673cebc707c
hex1b0051799ef0

29688180874992 has 120 divisors (see below), whose sum is σ = 85858188474240. Its totient is φ = 9566522449920.

The previous prime is 29688180874981. The next prime is 29688180875039. The reversal of 29688180874992 is 29947808188692.

29688180874992 is a `hidden beast` number, since 296 + 88 + 180 + 8 + 74 + 9 + 9 + 2 = 666.

It is a super-3 number, since 3×296881808749923 (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 567628 + ... + 7726484.

It is an arithmetic number, because the mean of its divisors is an integer number (715484903952).

Almost surely, 229688180874992 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 29688180874992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42929094237120).

29688180874992 is an abundant number, since it is smaller than the sum of its proper divisors (56170007599248).

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

29688180874992 is a wasteful number, since it uses less digits than its factorization.

29688180874992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7159831 (or 7159822 counting only the distinct ones).

The product of its (nonzero) digits is 2006581248, while the sum is 81.

The spelling of 29688180874992 in words is "twenty-nine trillion, six hundred eighty-eight billion, one hundred eighty million, eight hundred seventy-four thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 31 36 48 62 72 93 124 144 186 248 279 372 496 558 744 929 1116 1488 1858 2232 2787 3716 4464 5574 7432 8361 11148 14864 16722 22296 28799 33444 44592 57598 66888 86397 115196 133776 172794 230392 259191 345588 460784 518382 691176 1036764 1382352 2073528 4147056 7158857 14317714 21476571 28635428 42953142 57270856 64429713 85906284 114541712 128859426 171812568 221924567 257718852 343625136 443849134 515437704 665773701 887698268 1030875408 1331547402 1775396536 1997321103 2663094804 3550793072 3994642206 5326189608 6650578153 7989284412 10652379216 13301156306 15978568824 19951734459 26602312612 31957137648 39903468918 53204625224 59855203377 79806937836 106409250448 119710406754 159613875672 206167922743 239420813508 319227751344 412335845486 478841627016 618503768229 824671690972 957683254032 1237007536458 1649343381944 1855511304687 2474015072916 3298686763888 3711022609374 4948030145832 7422045218748 9896060291664 14844090437496 29688180874992