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20031330120 = 2335166927751
BaseRepresentation
bin10010101001111101…
…011101011101001000
31220201000111000002120
4102221331131131020
5312011010030440
613111404531240
71306252332234
oct225175353510
956630430076
1020031330120
11854a18888a
123a70550b20
131b73027179
14d8051d5c4
157c38a8dd0
hex4a9f5d748

20031330120 has 32 divisors (see below), whose sum is σ = 60093990720. Its totient is φ = 5341688000.

The previous prime is 20031330119. The next prime is 20031330149. The reversal of 20031330120 is 2103313002.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20031330120.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83463756 + ... + 83463995.

It is an arithmetic number, because the mean of its divisors is an integer number (1877937210).

Almost surely, 220031330120 is an apocalyptic number.

20031330120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20031330120 is an abundant number, since it is smaller than the sum of its proper divisors (40062660600).

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

20031330120 is a wasteful number, since it uses less digits than its factorization.

20031330120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166927765 (or 166927761 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 20031330120 its reverse (2103313002), we get a palindrome (22134643122).

The spelling of 20031330120 in words is "twenty billion, thirty-one million, three hundred thirty thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 166927751 333855502 500783253 667711004 834638755 1001566506 1335422008 1669277510 2003133012 2503916265 3338555020 4006266024 5007832530 6677110040 10015665060 20031330120