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1310321130220 = 2259715716326393
BaseRepresentation
bin10011000100010101001…
…110011011101011101100
311122021011112101012012101
4103010111032123223230
5132432014202131340
62441541521144444
7163444656560134
oct23042516335354
94567145335171
101310321130220
11465782133083
12191b47a8b124
13967414a039b
14475c4221ac4
15241400b7c9a
hex1311539baec

1310321130220 has 96 divisors (see below), whose sum is σ = 2815020186048. Its totient is φ = 512239583232.

The previous prime is 1310321130193. The next prime is 1310321130263. The reversal of 1310321130220 is 220311230131.

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, 49633344 + ... + 49659736.

It is an arithmetic number, because the mean of its divisors is an integer number (29323126938).

Almost surely, 21310321130220 is an apocalyptic number.

1310321130220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1310321130220 is an abundant number, since it is smaller than the sum of its proper divisors (1504699055828).

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

1310321130220 is a wasteful number, since it uses less digits than its factorization.

1310321130220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26819 (or 26817 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1310321130220 its reverse (220311230131), we get a palindrome (1530632360351).

The spelling of 1310321130220 in words is "one trillion, three hundred ten billion, three hundred twenty-one million, one hundred thirty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 97 157 163 194 314 326 388 485 628 652 785 815 970 1570 1630 1940 3140 3260 15229 15811 25591 26393 30458 31622 51182 52786 60916 63244 76145 79055 102364 105572 127955 131965 152290 158110 255910 263930 304580 316220 511820 527860 2482327 2560121 4143701 4302059 4964654 5120242 8287402 8604118 9929308 10240484 12411635 12800605 16574804 17208236 20718505 21510295 24823270 25601210 41437010 43020590 49646540 51202420 82874020 86041180 401938997 417299723 675423263 803877994 834599446 1350846526 1607755988 1669198892 2009694985 2086498615 2701693052 3377116315 4019389970 4172997230 6754232630 8038779940 8345994460 13508465260 65516056511 131032113022 262064226044 327580282555 655160565110 1310321130220