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1220313132210 = 235193409515311
BaseRepresentation
bin10001110000100000010…
…101001010110010110010
311022122211201110010212110
4101300200111022302302
5124443200130212320
62332334253310150
7154110332322564
oct21604025126262
94278751403773
101220313132210
11430593a49a67
12178608495356
138b0c8b0a873
14430c6241334
1521b231ab5e0
hex11c2054acb2

1220313132210 has 64 divisors (see below), whose sum is σ = 2951129986560. Its totient is φ = 322938593280.

The previous prime is 1220313132209. The next prime is 1220313132223. The reversal of 1220313132210 is 122313130221.

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, 2110455 + ... + 2625765.

It is an arithmetic number, because the mean of its divisors is an integer number (46111406040).

Almost surely, 21220313132210 is an apocalyptic number.

1220313132210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220313132210 is an abundant number, since it is smaller than the sum of its proper divisors (1730816854350).

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

1220313132210 is a wasteful number, since it uses less digits than its factorization.

1220313132210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515923.

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

Adding to 1220313132210 its reverse (122313130221), we get a palindrome (1342626262431).

The spelling of 1220313132210 in words is "one trillion, two hundred twenty billion, three hundred thirteen million, one hundred thirty-two thousand, two hundred ten".

Divisors: 1 2 3 5 6 10 15 30 193 386 409 579 818 965 1158 1227 1930 2045 2454 2895 4090 5790 6135 12270 78937 157874 236811 394685 473622 515311 789370 1030622 1184055 1545933 2368110 2576555 3091866 5153110 7729665 15459330 99455023 198910046 210762199 298365069 421524398 497275115 596730138 632286597 994550230 1053810995 1264573194 1491825345 2107621990 2983650690 3161432985 6322865970 40677104407 81354208814 122031313221 203385522035 244062626442 406771044070 610156566105 1220313132210