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481867999920 = 243351911741423
BaseRepresentation
bin1110000001100011001…
…00100010101010110000
31201001210012122200011000
413000301210202222300
530343331201444140
61005211143322000
746546065263346
oct7006144425260
91631705580130
10481867999920
111763a4a1846a
1279480750300
1336594781548
1419473075996
15c803da3a30
hex7031922ab0

481867999920 has 160 divisors (see below), whose sum is σ = 1747123891200. Its totient is φ = 121735063296.

The previous prime is 481867999919. The next prime is 481867999931. The reversal of 481867999920 is 29999768184.

It is a super-2 number, since 2×4818679999202 (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

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, 5829672 + ... + 5911751.

It is an arithmetic number, because the mean of its divisors is an integer number (10919524320).

Almost surely, 2481867999920 is an apocalyptic number.

481867999920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

481867999920 is an abundant number, since it is smaller than the sum of its proper divisors (1265255891280).

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

481867999920 is a wasteful number, since it uses less digits than its factorization.

481867999920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11741464 (or 11741452 counting only the distinct ones).

The product of its (nonzero) digits is 141087744, while the sum is 72.

The spelling of 481867999920 in words is "four hundred eighty-one billion, eight hundred sixty-seven million, nine hundred ninety-nine thousand, nine hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 19 20 24 27 30 36 38 40 45 48 54 57 60 72 76 80 90 95 108 114 120 135 144 152 171 180 190 216 228 240 270 285 304 342 360 380 432 456 513 540 570 684 720 760 855 912 1026 1080 1140 1368 1520 1710 2052 2160 2280 2565 2736 3420 4104 4560 5130 6840 8208 10260 13680 20520 41040 11741423 23482846 35224269 46965692 58707115 70448538 93931384 105672807 117414230 140897076 176121345 187862768 211345614 223087037 234828460 281794152 317018421 352242690 422691228 446174074 469656920 528364035 563588304 634036842 669261111 704485380 845382456 892348148 939313840 1056728070 1115435185 1268073684 1338522222 1408970760 1585092105 1690764912 1784696296 2007783333 2113456140 2230870370 2536147368 2677044444 2817941520 3170184210 3346305555 3569392592 4015566666 4226912280 4461740740 5072294736 5354088888 6023349999 6340368420 6692611110 8031133332 8453824560 8923481480 10038916665 10708177776 12046699998 12680736840 13385222220 16062266664 17846962960 20077833330 24093399996 25361473680 26770444440 30116749995 32124533328 40155666660 48186799992 53540888880 60233499990 80311333320 96373599984 120466999980 160622666640 240933999960 481867999920