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20123022130 = 252012302213
BaseRepresentation
bin10010101111011011…
…001111001100110010
31220221102000102212221
4102233123033030302
5312202443202010
613124442111254
71311444603001
oct225733171462
956842012787
1020123022130
118596a15402
123a971ab52a
131b8901c2b3
14d8c78ac38
157cb96bdda
hex4af6cf332

20123022130 has 8 divisors (see below), whose sum is σ = 36221439852. Its totient is φ = 8049208848.

The previous prime is 20123022109. The next prime is 20123022163. The reversal of 20123022130 is 3122032102.

It can be written as a sum of positive squares in 2 ways, for example, as 18500624289 + 1622397841 = 136017^2 + 40279^2 .

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

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, 1006151097 + ... + 1006151116.

Almost surely, 220123022130 is an apocalyptic number.

20123022130 is a deficient number, since it is larger than the sum of its proper divisors (16098417722).

20123022130 is a wasteful number, since it uses less digits than its factorization.

20123022130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012302220.

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

Adding to 20123022130 its reverse (3122032102), we get a palindrome (23245054232).

The spelling of 20123022130 in words is "twenty billion, one hundred twenty-three million, twenty-two thousand, one hundred thirty".

Divisors: 1 2 5 10 2012302213 4024604426 10061511065 20123022130