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2031440030120 = 2351723912499631
BaseRepresentation
bin11101100011111011010…
…000101110100110101000
321012012111112210212022002
4131203323100232212220
5231240342121430440
64153121453550132
7266523656231324
oct35437320564650
97165445725262
102031440030120
1171358aa34856
122898591a5348
131197440823a7
147047226a984
1537c98257115
hex1d8fb42e9a8

2031440030120 has 64 divisors (see below), whose sum is σ = 4859856921600. Its totient is φ = 761577456640.

The previous prime is 2031440030077. The next prime is 2031440030141. The reversal of 2031440030120 is 210300441302.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2031440030092 and 2031440030101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6087296 + ... + 6412335.

It is an arithmetic number, because the mean of its divisors is an integer number (75935264400).

Almost surely, 22031440030120 is an apocalyptic number.

2031440030120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2031440030120 is an abundant number, since it is smaller than the sum of its proper divisors (2828416891480).

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

2031440030120 is a wasteful number, since it uses less digits than its factorization.

2031440030120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12499898 (or 12499894 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 2031440030120 its reverse (210300441302), we get a palindrome (2241740471422).

The spelling of 2031440030120 in words is "two trillion, thirty-one billion, four hundred forty million, thirty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 17 20 34 40 68 85 136 170 239 340 478 680 956 1195 1912 2390 4063 4780 8126 9560 16252 20315 32504 40630 81260 162520 12499631 24999262 49998524 62498155 99997048 124996310 212493727 249992620 424987454 499985240 849974908 1062468635 1699949816 2124937270 2987411809 4249874540 5974823618 8499749080 11949647236 14937059045 23899294472 29874118090 50786000753 59748236180 101572001506 119496472360 203144003012 253930003765 406288006024 507860007530 1015720015060 2031440030120