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86123046660 = 22357481742569
BaseRepresentation
bin101000000110101010…
…1010110011100000100
322020022001201001221220
41100031111112130010
52402334444443120
6103321523440340
76136131550410
oct1201525263404
9266261631856
1086123046660
113358523a722
12148365260b0
138176853451
144250057d40
152390d0eb40
hex140d556704

86123046660 has 96 divisors (see below), whose sum is σ = 275657437440. Its totient is φ = 19680718848.

The previous prime is 86123046643. The next prime is 86123046661. The reversal of 86123046660 is 6664032168.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (86123046661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2001856 + ... + 2044424.

It is an arithmetic number, because the mean of its divisors is an integer number (2871431640).

Almost surely, 286123046660 is an apocalyptic number.

It is an amenable number.

86123046660 is an abundant number, since it is smaller than the sum of its proper divisors (189534390780).

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

86123046660 is a wasteful number, since it uses less digits than its factorization.

86123046660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47405 (or 47403 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 42.

The spelling of 86123046660 in words is "eighty-six billion, one hundred twenty-three million, forty-six thousand, six hundred sixty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 4817 9634 14451 19268 24085 28902 33719 42569 48170 57804 67438 72255 85138 96340 101157 127707 134876 144510 168595 170276 202314 212845 255414 289020 297983 337190 404628 425690 505785 510828 595966 638535 674380 851380 893949 1011570 1191932 1277070 1489915 1787898 2023140 2554140 2979830 3575796 4469745 5959660 8939490 17878980 205054873 410109746 615164619 820219492 1025274365 1230329238 1435384111 2050548730 2460658476 2870768222 3075823095 4101097460 4306152333 5741536444 6151646190 7176920555 8612304666 12303292380 14353841110 17224609332 21530761665 28707682220 43061523330 86123046660