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231428079120 = 243571011363909
BaseRepresentation
bin1101011110001000110…
…0000011111000010000
3211010100121202112010210
43113202030003320100
512242431042012440
6254152214524120
722502001133560
oct3274214037020
9733317675123
10231428079120
118a16a132207
1238a28966640
1318a925145b4
14b2b606ada0
15604763ca80
hex35e2303e10

231428079120 has 160 divisors (see below), whose sum is σ = 828035216640. Its totient is φ = 52374067200.

The previous prime is 231428079119. The next prime is 231428079167. The reversal of 231428079120 is 21970824132.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 512275 + ... + 851634.

It is an arithmetic number, because the mean of its divisors is an integer number (5175220104).

Almost surely, 2231428079120 is an apocalyptic number.

231428079120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231428079120 is an abundant number, since it is smaller than the sum of its proper divisors (596607137520).

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

231428079120 is a wasteful number, since it uses less digits than its factorization.

231428079120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364033 (or 1364027 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 231428079120 in words is "two hundred thirty-one billion, four hundred twenty-eight million, seventy-nine thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 35 40 42 48 56 60 70 80 84 101 105 112 120 140 168 202 210 240 280 303 336 404 420 505 560 606 707 808 840 1010 1212 1414 1515 1616 1680 2020 2121 2424 2828 3030 3535 4040 4242 4848 5656 6060 7070 8080 8484 10605 11312 12120 14140 16968 21210 24240 28280 33936 42420 56560 84840 169680 1363909 2727818 4091727 5455636 6819545 8183454 9547363 10911272 13639090 16366908 19094726 20458635 21822544 27278180 28642089 32733816 38189452 40917270 47736815 54556360 57284178 65467632 76378904 81834540 95473630 109112720 114568356 137754809 143210445 152757808 163669080 190947260 229136712 275509618 286420890 327338160 381894520 413264427 458273424 551019236 572841780 688774045 763789040 826528854 964283663 1102038472 1145683560 1377548090 1653057708 1928567326 2066322135 2204076944 2291367120 2755096180 2892850989 3306115416 3857134652 4132644270 4821418315 5510192360 5785701978 6612230832 7714269304 8265288540 9642836630 11020384720 11571403956 14464254945 15428538608 16530577080 19285673260 23142807912 28928509890 33061154160 38571346520 46285615824 57857019780 77142693040 115714039560 231428079120