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12722868480 = 28357473321
BaseRepresentation
bin10111101100101011…
…11001000100000000
31012211200022200111010
423312111321010000
5202024023242410
65502251120520
7630166412010
oct136625710400
935750280433
1012722868480
115439800443
122570a43140
131279b4cb5a
14889a29c40
154e6e5dc20
hex2f6579100

12722868480 has 144 divisors (see below), whose sum is σ = 46438568064. Its totient is φ = 2908078080.

The previous prime is 12722868479. The next prime is 12722868511. The reversal of 12722868480 is 8486822721.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 209781 + ... + 263540.

It is an arithmetic number, because the mean of its divisors is an integer number (322490056).

Almost surely, 212722868480 is an apocalyptic number.

12722868480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12722868480 is an abundant number, since it is smaller than the sum of its proper divisors (33715699584).

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

12722868480 is an equidigital number, since it uses as much as digits as its factorization.

12722868480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473352 (or 473338 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 48.

The spelling of 12722868480 in words is "twelve billion, seven hundred twenty-two million, eight hundred sixty-eight thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 42 48 56 60 64 70 80 84 96 105 112 120 128 140 160 168 192 210 224 240 256 280 320 336 384 420 448 480 560 640 672 768 840 896 960 1120 1280 1344 1680 1792 1920 2240 2688 3360 3840 4480 5376 6720 8960 13440 26880 473321 946642 1419963 1893284 2366605 2839926 3313247 3786568 4733210 5679852 6626494 7099815 7573136 9466420 9939741 11359704 13252988 14199630 15146272 16566235 18932840 19879482 22719408 26505976 28399260 30292544 33132470 37865680 39758964 45438816 49698705 53011952 56798520 60585088 66264940 75731360 79517928 90877632 99397410 106023904 113597040 121170176 132529880 151462720 159035856 181755264 198794820 212047808 227194080 265059760 302925440 318071712 363510528 397589640 424095616 454388160 530119520 605850880 636143424 795179280 848191232 908776320 1060239040 1272286848 1590358560 1817552640 2120478080 2544573696 3180717120 4240956160 6361434240 12722868480