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20124301323 = 372136900009
BaseRepresentation
bin10010101111100000…
…000111100000001011
31220221111102102121110
4102233200013200023
5312203310120243
613124525341403
71311461511300
oct225740074013
956844372543
1020124301323
118597709495
123a97707863
131b89379609
14d8ca010a7
157cbb20e33
hex4af80780b

20124301323 has 12 divisors (see below), whose sum is σ = 31213202280. Its totient is φ = 11499600672.

The previous prime is 20124301313. The next prime is 20124301357. The reversal of 20124301323 is 32310342102.

It is not a de Polignac number, because 20124301323 - 210 = 20124300299 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 20124301323.

It is not an unprimeable number, because it can be changed into a prime (20124301313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68449858 + ... + 68450151.

It is an arithmetic number, because the mean of its divisors is an integer number (2601100190).

Almost surely, 220124301323 is an apocalyptic number.

20124301323 is a deficient number, since it is larger than the sum of its proper divisors (11088900957).

20124301323 is a wasteful number, since it uses less digits than its factorization.

20124301323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136900026 (or 136900019 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20124301323 its reverse (32310342102), we get a palindrome (52434643425).

The spelling of 20124301323 in words is "twenty billion, one hundred twenty-four million, three hundred one thousand, three hundred twenty-three".

Divisors: 1 3 7 21 49 147 136900009 410700027 958300063 2874900189 6708100441 20124301323