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188668386102480 = 24357310768743499
BaseRepresentation
bin101010111001011111001000…
…001000100100110011010000
3220202000112002012220221221120
4222321133020020210303100
5144212120323320234410
61505133020545122240
754511561326365214
oct5271371010446320
9822015065827846
10188668386102480
115512a8a4420009
12191b1244929380
1381374774b37bb
143483854830944
1516c2a6eaa5570
hexab97c8224cd0

188668386102480 has 80 divisors (see below), whose sum is σ = 592883942136000. Its totient is φ = 49622370038784.

The previous prime is 188668386102373. The next prime is 188668386102533. The reversal of 188668386102480 is 84201683866881.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

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, 5384354230 + ... + 5384389269.

It is an arithmetic number, because the mean of its divisors is an integer number (7411049276700).

Almost surely, 2188668386102480 is an apocalyptic number.

188668386102480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

188668386102480 is an abundant number, since it is smaller than the sum of its proper divisors (404215556033520).

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

188668386102480 is a wasteful number, since it uses less digits than its factorization.

188668386102480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10768743588 (or 10768743582 counting only the distinct ones).

The product of its (nonzero) digits is 169869312, while the sum is 69.

The spelling of 188668386102480 in words is "one hundred eighty-eight trillion, six hundred sixty-eight billion, three hundred eighty-six million, one hundred two thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 73 80 120 146 219 240 292 365 438 584 730 876 1095 1168 1460 1752 2190 2920 3504 4380 5840 8760 17520 10768743499 21537486998 32306230497 43074973996 53843717495 64612460994 86149947992 107687434990 129224921988 161531152485 172299895984 215374869980 258449843976 323062304970 430749739960 516899687952 646124609940 786118275427 861499479920 1292249219880 1572236550854 2358354826281 2584498439760 3144473101708 3930591377135 4716709652562 6288946203416 7861182754270 9433419305124 11791774131405 12577892406832 15722365508540 18866838610248 23583548262810 31444731017080 37733677220496 47167096525620 62889462034160 94334193051240 188668386102480