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20122042413 = 311659925279
BaseRepresentation
bin10010101111010111…
…100000000000101101
31220221100011122222010
4102233113200000231
5312202220324123
613124405111433
71311433352454
oct225727400055
956840148863
1020122042413
118596406320
123a969b8579
131b88a68395
14d8c5b3b9b
157cb826993
hex4af5e002d

20122042413 has 16 divisors (see below), whose sum is σ = 29312870400. Its totient is φ = 12176658480.

The previous prime is 20122042403. The next prime is 20122042417. The reversal of 20122042413 is 31424022102.

It is not a de Polignac number, because 20122042413 - 26 = 20122042349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20122042413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122042417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 440893 + ... + 484386.

It is an arithmetic number, because the mean of its divisors is an integer number (1832054400).

Almost surely, 220122042413 is an apocalyptic number.

It is an amenable number.

20122042413 is a deficient number, since it is larger than the sum of its proper divisors (9190827987).

20122042413 is a wasteful number, since it uses less digits than its factorization.

20122042413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925952.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20122042413 its reverse (31424022102), we get a palindrome (51546064515).

The spelling of 20122042413 in words is "twenty billion, one hundred twenty-two million, forty-two thousand, four hundred thirteen".

Divisors: 1 3 11 33 659 1977 7249 21747 925279 2775837 10178069 30534207 609758861 1829276583 6707347471 20122042413