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110120102020 = 225172287141619
BaseRepresentation
bin110011010001110101…
…0110110100010000100
3101112020110101210101001
41212203222312202010
53301011221231040
6122331035543044
710645610265055
oct1464352664204
9345213353331
10110120102020
1142779a21585
1219412bbaa84
13a4cc35b3a6
14548912872c
152ce791d59a
hex19a3ab6884

110120102020 has 48 divisors (see below), whose sum is σ = 244964079360. Its totient is φ = 41438559744.

The previous prime is 110120102009. The next prime is 110120102039. The reversal of 110120102020 is 20201021011.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 110120101988 and 110120102006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 706771 + ... + 848389.

It is an arithmetic number, because the mean of its divisors is an integer number (5103418320).

Almost surely, 2110120102020 is an apocalyptic number.

110120102020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

110120102020 is an abundant number, since it is smaller than the sum of its proper divisors (134843977340).

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

110120102020 is a wasteful number, since it uses less digits than its factorization.

110120102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143932 (or 143930 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 110120102020 its reverse (20201021011), we get a palindrome (130321123031).

The spelling of 110120102020 in words is "one hundred ten billion, one hundred twenty million, one hundred two thousand, twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 2287 4574 9148 11435 22870 38879 45740 77758 141619 155516 194395 283238 388790 566476 708095 777580 1416190 2407523 2832380 4815046 9630092 12037615 24075230 48150460 323882653 647765306 1295530612 1619413265 3238826530 5506005101 6477653060 11012010202 22024020404 27530025505 55060051010 110120102020