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20020122130 = 252002012213
BaseRepresentation
bin10010101001010010…
…101101001000010010
31220200020101120121211
4102221102231020102
5312000122402010
613110324410334
71306055142001
oct225122551022
956606346554
1020020122130
118543923088
123a688469aa
131b70901818
14d7cc42c38
157c28e308a
hex4a94ad212

20020122130 has 8 divisors (see below), whose sum is σ = 36036219852. Its totient is φ = 8008048848.

The previous prime is 20020122127. The next prime is 20020122151. The reversal of 20020122130 is 3122102002.

It can be written as a sum of positive squares in 2 ways, for example, as 18126044689 + 1894077441 = 134633^2 + 43521^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 20020122130.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1001006097 + ... + 1001006116.

Almost surely, 220020122130 is an apocalyptic number.

20020122130 is a deficient number, since it is larger than the sum of its proper divisors (16016097722).

20020122130 is a wasteful number, since it uses less digits than its factorization.

20020122130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002012220.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20020122130 its reverse (3122102002), we get a palindrome (23142224132).

The spelling of 20020122130 in words is "twenty billion, twenty million, one hundred twenty-two thousand, one hundred thirty".

Divisors: 1 2 5 10 2002012213 4004024426 10010061065 20020122130