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20423414213 = 234933180007
BaseRepresentation
bin10011000001010101…
…001001000111000101
31221201100020221100122
4103001111021013011
5313311343223323
613214332351325
71322053104446
oct230125110705
957640227318
1020423414213
118730537424
123b5b915545
131c063266a7
14dba6232cd
157e8006ec8
hex4c15491c5

20423414213 has 8 divisors (see below), whose sum is σ = 21315827328. Its totient is φ = 19531371024.

The previous prime is 20423414197. The next prime is 20423414233. The reversal of 20423414213 is 31241432402.

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

It is a cyclic number.

It is not a de Polignac number, because 20423414213 - 24 = 20423414197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20423414233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23456 + ... + 203462.

It is an arithmetic number, because the mean of its divisors is an integer number (2664478416).

Almost surely, 220423414213 is an apocalyptic number.

20423414213 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20423414213 is a deficient number, since it is larger than the sum of its proper divisors (892413115).

20423414213 is a wasteful number, since it uses less digits than its factorization.

20423414213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184963.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 20423414213 its reverse (31241432402), we get a palindrome (51664846615).

The spelling of 20423414213 in words is "twenty billion, four hundred twenty-three million, four hundred fourteen thousand, two hundred thirteen".

Divisors: 1 23 4933 113459 180007 4140161 887974531 20423414213