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33312102020 = 22523919133643
BaseRepresentation
bin11111000001100011…
…100101011010000100
310011222120121010012022
4133001203211122010
51021210344231040
623145305542312
72256335123651
oct370143453204
9104876533168
1033312102020
11131448a432a
1265581a4998
1331ab623992
141880294c28
15cee7bc6b5
hex7c18e5684

33312102020 has 48 divisors (see below), whose sum is σ = 70304129280. Its totient is φ = 13258511616.

The previous prime is 33312102011. The next prime is 33312102023. The reversal of 33312102020 is 2020121333.

It is a super-2 number, since 2×333121020202 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33312102020.

It is not an unprimeable number, because it can be changed into a prime (33312102023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9142319 + ... + 9145961.

It is an arithmetic number, because the mean of its divisors is an integer number (1464669360).

Almost surely, 233312102020 is an apocalyptic number.

It is an amenable number.

33312102020 is an abundant number, since it is smaller than the sum of its proper divisors (36992027260).

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

33312102020 is a wasteful number, since it uses less digits than its factorization.

33312102020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5804 (or 5802 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 33312102020 its reverse (2020121333), we get a palindrome (35332223353).

The spelling of 33312102020 in words is "thirty-three billion, three hundred twelve million, one hundred two thousand, twenty".

Divisors: 1 2 4 5 10 20 239 478 956 1195 1913 2390 3643 3826 4780 7286 7652 9565 14572 18215 19130 36430 38260 72860 457207 870677 914414 1741354 1828828 2286035 3482708 4353385 4572070 6969059 8706770 9144140 13938118 17413540 27876236 34845295 69690590 139381180 1665605101 3331210202 6662420404 8328025505 16656051010 33312102020