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142912274781984 = 25319312527452511
BaseRepresentation
bin100000011111101001011011…
…010111110101011100100000
3200202000021120011001000011120
4200133221123113311130200
5122212433314321010414
61223540554230412240
742050033252350101
oct4037513327653440
9622007504030146
10142912274781984
1141599834443244
1214041433801080
1361987537a3c76
142740dc346c3a8
15117c7224432a9
hex81fa5b5f5720

142912274781984 has 96 divisors (see below), whose sum is σ = 407627541135360. Its totient is φ = 43674379372800.

The previous prime is 142912274781967. The next prime is 142912274782037. The reversal of 142912274781984 is 489187472219241.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×1429122747819842 (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1263669712 + ... + 1263782799.

It is an arithmetic number, because the mean of its divisors is an integer number (4246120220160).

Almost surely, 2142912274781984 is an apocalyptic number.

It is an amenable number.

142912274781984 is an abundant number, since it is smaller than the sum of its proper divisors (264715266353376).

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

142912274781984 is a wasteful number, since it uses less digits than its factorization.

142912274781984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2527452574 (or 2527452566 counting only the distinct ones).

The product of its digits is 130056192, while the sum is 69.

The spelling of 142912274781984 in words is "one hundred forty-two trillion, nine hundred twelve billion, two hundred seventy-four million, seven hundred eighty-one thousand, nine hundred eighty-four".

Divisors: 1 2 3 4 6 8 12 16 19 24 31 32 38 48 57 62 76 93 96 114 124 152 186 228 248 304 372 456 496 589 608 744 912 992 1178 1488 1767 1824 2356 2976 3534 4712 7068 9424 14136 18848 28272 56544 2527452511 5054905022 7582357533 10109810044 15164715066 20219620088 30329430132 40439240176 48021597709 60658860264 78351027841 80878480352 96043195418 121317720528 144064793127 156702055682 192086390836 235053083523 242635441056 288129586254 313404111364 384172781672 470106167046 576259172508 626808222728 768345563344 940212334092 1152518345016 1253616445456 1488669528979 1536691126688 1880424668184 2305036690032 2507232890912 2977339057958 3760849336368 4466008586937 4610073380064 5954678115916 7521698672736 8932017173874 11909356231832 17864034347748 23818712463664 35728068695496 47637424927328 71456137390992 142912274781984