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6421052132880 = 2435711347459531
BaseRepresentation
bin101110101110000010010…
…0010000000111000010000
3211201211212011102002010020
41131130010202000320100
51320200303321223010
621353442435303440
71231622441406660
oct135340442007020
924654764362106
106421052132880
112056175594880
1287853944ab80
1337766c3370a8
14182acdcb61a0
15b205db7a470
hex5d704880e10

6421052132880 has 160 divisors (see below), whose sum is σ = 24816949613568. Its totient is φ = 1334244595200.

The previous prime is 6421052132867. The next prime is 6421052132923. The reversal of 6421052132880 is 882312501246.

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

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, 173711286 + ... + 173748245.

Almost surely, 26421052132880 is an apocalyptic number.

6421052132880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6421052132880 is an abundant number, since it is smaller than the sum of its proper divisors (18395897480688).

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

6421052132880 is a wasteful number, since it uses less digits than its factorization.

6421052132880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347459565 (or 347459559 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The spelling of 6421052132880 in words is "six trillion, four hundred twenty-one billion, fifty-two million, one hundred thirty-two thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 7 8 10 11 12 14 15 16 20 21 22 24 28 30 33 35 40 42 44 48 55 56 60 66 70 77 80 84 88 105 110 112 120 132 140 154 165 168 176 210 220 231 240 264 280 308 330 336 385 420 440 462 528 560 616 660 770 840 880 924 1155 1232 1320 1540 1680 1848 2310 2640 3080 3696 4620 6160 9240 18480 347459531 694919062 1042378593 1389838124 1737297655 2084757186 2432216717 2779676248 3474595310 3822054841 4169514372 4864433434 5211892965 5559352496 6949190620 7296650151 7644109682 8339028744 9728866868 10423785930 11466164523 12161083585 13898381240 14593300302 15288219364 16678057488 19110274205 19457733736 20847571860 22932329046 24322167170 26754383887 27796762480 29186600604 30576438728 36483250755 38220548410 38915467472 41695143720 45864658092 48644334340 53508767774 57330822615 58373201208 61152877456 72966501510 76441096820 80263151661 83390287440 91729316184 97288668680 107017535548 114661645230 116746402416 133771919435 145933003020 152882193640 160526303322 183458632368 194577337360 214035071096 229323290460 267543838870 291866006040 305764387280 321052606644 401315758305 428070142192 458646580920 535087677740 583732012080 642105213288 802631516610 917293161840 1070175355480 1284210426576 1605263033220 2140350710960 3210526066440 6421052132880