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110111100020 = 225257143914887
BaseRepresentation
bin110011010001100100…
…0100000110001110100
3101112012211110102221122
41212203020200301310
53301001420200040
6122330115003112
710645440623135
oct1464310406164
9345184412848
10110111100020
1142774933209
121940bb99498
13a4ca528b6c
145487c63c8c
152ce6c411b5
hex19a3220c74

110111100020 has 48 divisors (see below), whose sum is σ = 232309969920. Its totient is φ = 43839627264.

The previous prime is 110111099983. The next prime is 110111100041. The reversal of 110111100020 is 20001111011.

It is a happy number.

It is a super-2 number, since 2×1101111000202 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 110111099980 and 110111100007.

It is a congruent number.

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, 7389017 + ... + 7403903.

It is an arithmetic number, because the mean of its divisors is an integer number (4839791040).

Almost surely, 2110111100020 is an apocalyptic number.

110111100020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

110111100020 is an abundant number, since it is smaller than the sum of its proper divisors (122198869900).

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

110111100020 is a wasteful number, since it uses less digits than its factorization.

110111100020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16592 (or 16590 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 110111100020 its reverse (20001111011), we get a palindrome (130112211031).

The spelling of 110111100020 in words is "one hundred ten billion, one hundred eleven million, one hundred thousand, twenty".

Divisors: 1 2 4 5 10 20 257 514 1028 1285 1439 2570 2878 5140 5756 7195 14390 14887 28780 29774 59548 74435 148870 297740 369823 739646 1479292 1849115 3698230 3825959 7396460 7651918 15303836 19129795 21422393 38259590 42844786 76519180 85689572 107111965 214223930 428447860 5505555001 11011110002 22022220004 27527775005 55055550010 110111100020