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20104120332 = 22321907292841
BaseRepresentation
bin10010101110010011…
…001000100000001100
31220220002110010111100
4102232103020200030
5312133123322312
613122525023100
71311125126502
oct225623104014
956802403440
1020104120332
11858728518a
123a909b4a90
131b851319ba
14d8a06a672
157c9e865dc
hex4ae4c880c

20104120332 has 36 divisors (see below), whose sum is σ = 50845570776. Its totient is φ = 6697836480.

The previous prime is 20104120319. The next prime is 20104120349. The reversal of 20104120332 is 23302140102.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77769 + ... + 215072.

It is an arithmetic number, because the mean of its divisors is an integer number (1412376966).

Almost surely, 220104120332 is an apocalyptic number.

It is an amenable number.

20104120332 is an abundant number, since it is smaller than the sum of its proper divisors (30741450444).

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

20104120332 is a wasteful number, since it uses less digits than its factorization.

20104120332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294758 (or 294753 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20104120332 its reverse (23302140102), we get a palindrome (43406260434).

The spelling of 20104120332 in words is "twenty billion, one hundred four million, one hundred twenty thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 36 1907 3814 5721 7628 11442 17163 22884 34326 68652 292841 585682 878523 1171364 1757046 2635569 3514092 5271138 10542276 558447787 1116895574 1675343361 2233791148 3350686722 5026030083 6701373444 10052060166 20104120332