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68287425136452 = 223231258672365541
BaseRepresentation
bin11111000011011011001111…
…01101111100011101000100
322221210012210001212200200200
433201231213231330131010
532422310121313331302
6401122450544410500
720245414024335504
oct1741554755743504
9287705701780620
1068287425136452
111a838597270525
1277aa688616a30
132c14627002192
1412c11b4017a04
157d64a525181c
hex3e1b67b7c744

68287425136452 has 72 divisors (see below), whose sum is σ = 178190639407872. Its totient is φ = 22027340750400.

The previous prime is 68287425136429. The next prime is 68287425136517. The reversal of 68287425136452 is 25463152478286.

68287425136452 is a `hidden beast` number, since 6 + 8 + 2 + 8 + 7 + 4 + 2 + 513 + 64 + 52 = 666.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 68287425136452.

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, 27684802 + ... + 30050342.

It is an arithmetic number, because the mean of its divisors is an integer number (2474869991776).

Almost surely, 268287425136452 is an apocalyptic number.

68287425136452 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

68287425136452 is an abundant number, since it is smaller than the sum of its proper divisors (109903214271420).

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

68287425136452 is a wasteful number, since it uses less digits than its factorization.

68287425136452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2391449 (or 2391444 counting only the distinct ones).

The product of its digits is 154828800, while the sum is 63.

The spelling of 68287425136452 in words is "sixty-eight trillion, two hundred eighty-seven billion, four hundred twenty-five million, one hundred thirty-six thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 31 36 62 93 124 186 279 372 558 1116 25867 51734 77601 103468 155202 232803 310404 465606 801877 931212 1603754 2365541 2405631 3207508 4731082 4811262 7096623 7216893 9462164 9622524 14193246 14433786 21289869 28386492 28867572 42579738 73331771 85159476 146663542 219995313 293327084 439990626 659985939 879981252 1319971878 2639943756 61189449047 122378898094 183568347141 244757796188 367136694282 550705041423 734273388564 1101410082846 1896872920457 2202820165692 3793745840914 5690618761371 7587491681828 11381237522742 17071856284113 22762475045484 34143712568226 68287425136452