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2131220033310 = 235821498717351
BaseRepresentation
bin11111000000110110100…
…111001110111100011110
321112202001101111012122210
4133000312213032330132
5234404214312031220
64311022521421250
7306655422245604
oct37006647167436
97482041435583
102131220033310
1175193316a005
122a506533a826
13125c861259b4
1475219dc1874
153a687ed76e0
hex1f0369cef1e

2131220033310 has 64 divisors (see below), whose sum is σ = 5122480310784. Its totient is φ = 567486576000.

The previous prime is 2131220033309. The next prime is 2131220033339. The reversal of 2131220033310 is 133300221312.

It is a super-2 number, since 2×21312200333102 (a number of 25 digits) contains 22 as substring.

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, 122821135 + ... + 122838485.

It is an arithmetic number, because the mean of its divisors is an integer number (80038754856).

Almost surely, 22131220033310 is an apocalyptic number.

2131220033310 is an abundant number, since it is smaller than the sum of its proper divisors (2991260277474).

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

2131220033310 is a wasteful number, since it uses less digits than its factorization.

2131220033310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23169.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 2131220033310 its reverse (133300221312), we get a palindrome (2264520254622).

The spelling of 2131220033310 in words is "two trillion, one hundred thirty-one billion, two hundred twenty million, thirty-three thousand, three hundred ten".

Divisors: 1 2 3 5 6 10 15 30 821 1642 2463 4105 4926 4987 8210 9974 12315 14961 17351 24630 24935 29922 34702 49870 52053 74805 86755 104106 149610 173510 260265 520530 4094327 8188654 12282981 14245171 20471635 24565962 28490342 40943270 42735513 61414905 71225855 85471026 86529437 122829810 142451710 173058874 213677565 259588311 427355130 432647185 519176622 865294370 1297941555 2595883110 71040667777 142081335554 213122003331 355203338885 426244006662 710406677770 1065610016655 2131220033310