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20332012120 = 235772614329
BaseRepresentation
bin10010111011111000…
…011110001001011000
31221110222021020020221
4102323320132021120
5313114443341440
613201305325424
71316563152160
oct227370361130
957428236227
1020332012120
118693988702
123b35196874
131bc0403504
14dac42d5a0
157dee9ed4a
hex4bbe1e258

20332012120 has 32 divisors (see below), whose sum is σ = 52282317600. Its totient is φ = 6970975488.

The previous prime is 20332012097. The next prime is 20332012133. The reversal of 20332012120 is 2121023302.

It is a junction number, because it is equal to n+sod(n) for n = 20332012094 and 20332012103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36306885 + ... + 36307444.

It is an arithmetic number, because the mean of its divisors is an integer number (1633822425).

Almost surely, 220332012120 is an apocalyptic number.

20332012120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20332012120 is an abundant number, since it is smaller than the sum of its proper divisors (31950305480).

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

20332012120 is a wasteful number, since it uses less digits than its factorization.

20332012120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72614347 (or 72614343 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20332012120 its reverse (2121023302), we get a palindrome (22453035422).

The spelling of 20332012120 in words is "twenty billion, three hundred thirty-two million, twelve thousand, one hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 72614329 145228658 290457316 363071645 508300303 580914632 726143290 1016600606 1452286580 2033201212 2541501515 2904573160 4066402424 5083003030 10166006060 20332012120