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313102002220 = 225721313377237
BaseRepresentation
bin1001000111001100101…
…01010110100000101100
31002221011121122200221121
410203212111112200230
520112213103032340
6355500450310324
731422650051500
oct4434625264054
91087147580847
10313102002220
11110870a10507
12508212883a4
13236aa395547
1411223260300
158227a5d94a
hex48e655682c

313102002220 has 144 divisors (see below), whose sum is σ = 773095875552. Its totient is φ = 106199009280.

The previous prime is 313102002211. The next prime is 313102002253. The reversal of 313102002220 is 22200201313.

It is a junction number, because it is equal to n+sod(n) for n = 313102002194 and 313102002203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43260442 + ... + 43267678.

It is an arithmetic number, because the mean of its divisors is an integer number (5368721358).

Almost surely, 2313102002220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 313102002220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (386547937776).

313102002220 is an abundant number, since it is smaller than the sum of its proper divisors (459993873332).

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

313102002220 is a wasteful number, since it uses less digits than its factorization.

313102002220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7728 (or 7719 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 313102002220 its reverse (22200201313), we get a palindrome (335302203533).

The spelling of 313102002220 in words is "three hundred thirteen billion, one hundred two million, two thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 49 70 98 131 140 196 245 262 337 490 524 655 674 917 980 1310 1348 1685 1834 2359 2620 3370 3668 4585 4718 6419 6740 7237 9170 9436 11795 12838 14474 16513 18340 23590 25676 28948 32095 33026 36185 44147 47180 50659 64190 66052 72370 82565 88294 101318 128380 144740 165130 176588 202636 220735 253295 309029 330260 354613 441470 506590 618058 709226 882940 948047 1013180 1236116 1418452 1545145 1773065 1896094 2163203 2438869 3090290 3546130 3792188 4326406 4740235 4877738 6180580 6636329 7092260 8652812 9480470 9755476 10816015 12194345 13272658 17072083 18960940 21632030 24388690 26545316 33181645 34144166 43264060 46454303 48777380 66363290 68288332 85360415 92908606 119504581 132726580 170720830 185817212 232271515 239009162 319491839 341441660 464543030 478018324 597522905 638983678 929086060 1195045810 1277967356 1597459195 2236442873 2390091620 3194918390 4472885746 6389836780 8945771492 11182214365 15655100111 22364428730 31310200222 44728857460 62620400444 78275500555 156551001110 313102002220