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78248280282340 = 225729101190821539
BaseRepresentation
bin10001110010101010011000…
…111100110101010011100100
3101021001110111012011022122111
4101302222120330311103210
540224004434223013330
6434230432543410404
722324152221155030
oct2162523074652344
9337043435138574
1078248280282340
1122a28a00322243
12893905a8b3a04
133487a202c871c
14154734637b1c0
1590a63d7c932a
hex472a98f354e4

78248280282340 has 96 divisors (see below), whose sum is σ = 196195074566400. Its totient is φ = 25646414707200.

The previous prime is 78248280282331. The next prime is 78248280282371. The reversal of 78248280282340 is 4328208284287.

It is a happy number.

It is a super-2 number, since 2×782482802823402 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95000710 + ... + 95820829.

It is an arithmetic number, because the mean of its divisors is an integer number (2043698693400).

Almost surely, 278248280282340 is an apocalyptic number.

78248280282340 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

78248280282340 is an abundant number, since it is smaller than the sum of its proper divisors (117946794284060).

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

78248280282340 is a wasteful number, since it uses less digits than its factorization.

78248280282340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190821685 (or 190821683 counting only the distinct ones).

The product of its (nonzero) digits is 22020096, while the sum is 58.

The spelling of 78248280282340 in words is "seventy-eight trillion, two hundred forty-eight billion, two hundred eighty million, two hundred eighty-two thousand, three hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 29 35 58 70 101 116 140 145 202 203 290 404 406 505 580 707 812 1010 1015 1414 2020 2030 2828 2929 3535 4060 5858 7070 11716 14140 14645 20503 29290 41006 58580 82012 102515 205030 410060 190821539 381643078 763286156 954107695 1335750773 1908215390 2671501546 3816430780 5343003092 5533824631 6678753865 11067649262 13357507730 19272975439 22135298524 26715015460 27669123155 38545950878 38736772417 55338246310 77091901756 77473544834 96364877195 110676492620 134910828073 154947089668 192729754390 193683862085 269821656146 385459508780 387367724170 539643312292 558916287731 674554140365 774735448340 1117832575462 1349108280730 2235665150924 2698216561460 2794581438655 3912414014117 5589162877310 7824828028234 11178325754620 15649656056468 19562070070585 39124140141170 78248280282340