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20013141924 = 22324311289839
BaseRepresentation
bin10010101000111000…
…000100111110100100
31220122202020221120200
4102220320010332210
5311441331020144
613105515030500
71305641620356
oct225070047644
956582227520
1020013141924
11853a995816
123a6643b430
131b6c329619
14d7bd470d6
157c1eb4c69
hex4a8e04fa4

20013141924 has 36 divisors (see below), whose sum is σ = 50706190080. Its totient is φ = 6655564080.

The previous prime is 20013141923. The next prime is 20013141971. The reversal of 20013141924 is 42914131002.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (20013141923) 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, 629404 + ... + 660435.

It is an arithmetic number, because the mean of its divisors is an integer number (1408505280).

Almost surely, 220013141924 is an apocalyptic number.

It is an amenable number.

20013141924 is an abundant number, since it is smaller than the sum of its proper divisors (30693048156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20013141924 is a wasteful number, since it uses less digits than its factorization.

20013141924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290280 (or 1290275 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

Adding to 20013141924 its reverse (42914131002), we get a palindrome (62927272926).

The spelling of 20013141924 in words is "twenty billion, thirteen million, one hundred forty-one thousand, nine hundred twenty-four".

Divisors: 1 2 3 4 6 9 12 18 36 431 862 1293 1724 2586 3879 5172 7758 15516 1289839 2579678 3869517 5159356 7739034 11608551 15478068 23217102 46434204 555920609 1111841218 1667761827 2223682436 3335523654 5003285481 6671047308 10006570962 20013141924