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3123113330220 = 22351316381244429
BaseRepresentation
bin101101011100101000000…
…011111000011000101100
3102001120022010201110010020
4231130220003320120230
5402132114003031340
610350423301242140
7441431442204012
oct55345003703054
912046263643106
103123113330220
11aa4561067984
12425344403350
1319867ba2b8b0
14ab2339068b2
155638cbc79d0
hex2d7280f862c

3123113330220 has 96 divisors (see below), whose sum is σ = 9418001315520. Its totient is φ = 768716282880.

The previous prime is 3123113330107. The next prime is 3123113330279. The reversal of 3123113330220 is 220333113213.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12654966 + ... + 12899394.

It is an arithmetic number, because the mean of its divisors is an integer number (98104180370).

Almost surely, 23123113330220 is an apocalyptic number.

3123113330220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3123113330220 is an abundant number, since it is smaller than the sum of its proper divisors (6294887985300).

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

3123113330220 is a wasteful number, since it uses less digits than its factorization.

3123113330220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260835 (or 260833 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 3123113330220 its reverse (220333113213), we get a palindrome (3343446443433).

The spelling of 3123113330220 in words is "three trillion, one hundred twenty-three billion, one hundred thirteen million, three hundred thirty thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 260 390 780 16381 32762 49143 65524 81905 98286 163810 196572 212953 244429 245715 327620 425906 488858 491430 638859 733287 851812 977716 982860 1064765 1222145 1277718 1466574 2129530 2444290 2555436 2933148 3177577 3194295 3666435 4259060 4888580 6355154 6388590 7332870 9532731 12710308 12777180 14665740 15887885 19065462 31775770 38130924 47663655 63551540 95327310 190654620 4003991449 8007982898 12011974347 16015965796 20019957245 24023948694 40039914490 48047897388 52051888837 60059871735 80079828980 104103777674 120119743470 156155666511 208207555348 240239486940 260259444185 312311333022 520518888370 624622666044 780778332555 1041037776740 1561556665110 3123113330220