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2031201310020 = 2235831087375227
BaseRepresentation
bin11101100011101101000…
…010000101010101000100
321012011212220121121212220
4131203231002011111010
5231234400013410040
64153042045212340
7266515030156341
oct35435502052504
97164786547786
102031201310020
11713478205913
122897b12610b0
1311970678bcac
147044c6897c8
1537c823002d0
hex1d8ed085544

2031201310020 has 96 divisors (see below), whose sum is σ = 5761196679168. Its totient is φ = 534634012032.

The previous prime is 2031201310013. The next prime is 2031201310049. The reversal of 2031201310020 is 200131021302.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 5225647 + ... + 5600873.

It is an arithmetic number, because the mean of its divisors is an integer number (60012465408).

Almost surely, 22031201310020 is an apocalyptic number.

2031201310020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2031201310020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2880598339584).

2031201310020 is an abundant number, since it is smaller than the sum of its proper divisors (3729995369148).

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

2031201310020 is a wasteful number, since it uses less digits than its factorization.

2031201310020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376409 (or 376407 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 2031201310020 its reverse (200131021302), we get a palindrome (2231332331322).

The spelling of 2031201310020 in words is "two trillion, thirty-one billion, two hundred one million, three hundred ten thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 83 166 249 332 415 498 830 996 1087 1245 1660 2174 2490 3261 4348 4980 5435 6522 10870 13044 16305 21740 32610 65220 90221 180442 270663 360884 375227 451105 541326 750454 902210 1082652 1125681 1353315 1500908 1804420 1876135 2251362 2706630 3752270 4502724 5413260 5628405 7504540 11256810 22513620 31143841 62287682 93431523 124575364 155719205 186863046 311438410 373726092 407871749 467157615 622876820 815743498 934315230 1223615247 1631486996 1868630460 2039358745 2447230494 4078717490 4894460988 6118076235 8157434980 12236152470 24472304940 33853355167 67706710334 101560065501 135413420668 169266775835 203120131002 338533551670 406240262004 507800327505 677067103340 1015600655010 2031201310020