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268238130483260 = 22573764695089361
BaseRepresentation
bin111100111111011000001110…
…011110111001000000111100
31022011202022111111220220120002
4330333120032132321000330
5240124303142400431020
62350254521310413432
7110333364634221260
oct7477301636710074
91264668444826502
10268238130483260
1178518174782273
122610241b201278
13b6899936b3302
144a34b1ac780a0
152102751827975
hexf3f60e7b903c

268238130483260 has 48 divisors (see below), whose sum is σ = 643773349679040. Its totient is φ = 91967096663040.

The previous prime is 268238130483223. The next prime is 268238130483269. The reversal of 268238130483260 is 62384031832862.

It is a happy number.

It is a super-2 number, since 2×2682381304832602 (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 268238130483196 and 268238130483205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268238130483269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50160980 + ... + 55250340.

It is an arithmetic number, because the mean of its divisors is an integer number (13411944784980).

Almost surely, 2268238130483260 is an apocalyptic number.

268238130483260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268238130483260 is an abundant number, since it is smaller than the sum of its proper divisors (375535219195780).

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

268238130483260 is a wasteful number, since it uses less digits than its factorization.

268238130483260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5465846 (or 5465844 counting only the distinct ones).

The product of its (nonzero) digits is 15925248, while the sum is 56.

The spelling of 268238130483260 in words is "two hundred sixty-eight trillion, two hundred thirty-eight billion, one hundred thirty million, four hundred eighty-three thousand, two hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 376469 752938 1505876 1882345 2635283 3764690 5089361 5270566 7529380 10178722 10541132 13176415 20357444 25446805 26352830 35625527 50893610 52705660 71251054 101787220 142502108 178127635 356255270 712510540 1915986646309 3831973292618 7663946585236 9579933231545 13411906524163 19159866463090 26823813048326 38319732926180 53647626096652 67059532620815 134119065241630 268238130483260