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20121032522 = 210337973253
BaseRepresentation
bin10010101111010011…
…101001011101001010
31220221021021100122202
4102233103221131022
5312201441020042
613124331320202
71311421645253
oct225723513512
956837240582
1020121032522
1185958865a8
123a965b0062
131b887a3806
14d8c3cdb2a
157cb6c7632
hex4af4e974a

20121032522 has 8 divisors (see below), whose sum is σ = 30184499556. Its totient is φ = 10059532672.

The previous prime is 20121032497. The next prime is 20121032597. The reversal of 20121032522 is 22523012102.

It can be written as a sum of positive squares in 2 ways, for example, as 17050875241 + 3070157281 = 130579^2 + 55409^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20121032494 and 20121032503.

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 3 ways as a sum of consecutive naturals, for example, 465953 + ... + 507300.

Almost surely, 220121032522 is an apocalyptic number.

20121032522 is a deficient number, since it is larger than the sum of its proper divisors (10063467034).

20121032522 is a wasteful number, since it uses less digits than its factorization.

20121032522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983592.

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 20121032522 its reverse (22523012102), we get a palindrome (42644044624).

The spelling of 20121032522 in words is "twenty billion, one hundred twenty-one million, thirty-two thousand, five hundred twenty-two".

Divisors: 1 2 10337 20674 973253 1946506 10060516261 20121032522