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3213101312220 = 22351910939257657
BaseRepresentation
bin101110110000011011110…
…000110010100011011100
3102101011120112222120122110
4232300123300302203130
5410120412413442340
610500024532114020
7451065434344452
oct56603360624334
912334515876573
103213101312220
111029739a1a738
1243a879165910
131a3cc0203917
14b172cd969d2
15588a7e7d680
hex2ec1bc328dc

3213101312220 has 96 divisors (see below), whose sum is σ = 9471095827200. Its totient is φ = 811653502464.

The previous prime is 3213101312177. The next prime is 3213101312243. The reversal of 3213101312220 is 222131013123.

3213101312220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 12341632 + ... + 12599288.

It is an arithmetic number, because the mean of its divisors is an integer number (98657248200).

Almost surely, 23213101312220 is an apocalyptic number.

3213101312220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3213101312220 is an abundant number, since it is smaller than the sum of its proper divisors (6257994514980).

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

3213101312220 is a wasteful number, since it uses less digits than its factorization.

3213101312220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268627 (or 268625 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 3213101312220 its reverse (222131013123), we get a palindrome (3435232325343).

The spelling of 3213101312220 in words is "three trillion, two hundred thirteen billion, one hundred one million, three hundred twelve thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 19 20 30 38 57 60 76 95 114 190 228 285 380 570 1140 10939 21878 32817 43756 54695 65634 109390 131268 164085 207841 218780 257657 328170 415682 515314 623523 656340 772971 831364 1030628 1039205 1247046 1288285 1545942 2078410 2494092 2576570 3091884 3117615 3864855 4156820 4895483 5153140 6235230 7729710 9790966 12470460 14686449 15459420 19581932 24477415 29372898 48954830 58745796 73432245 97909660 146864490 293728980 2818509923 5637019846 8455529769 11274039692 14092549615 16911059538 28185099230 33822119076 42277648845 53551688537 56370198460 84555297690 107103377074 160655065611 169110595380 214206754148 267758442685 321310131222 535516885370 642620262444 803275328055 1071033770740 1606550656110 3213101312220