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20002220124 = 2232416916397
BaseRepresentation
bin10010101000001110…
…011010100001011100
31220121222201001200120
4102220032122201130
5311431032020444
613104444554540
71305450031365
oct225016324134
956558631616
1020002220124
118534806037
123a62852a50
131b69ca4313
14d7a702b6c
157c1058b19
hex4a839a85c

20002220124 has 24 divisors (see below), whose sum is σ = 46865512848. Its totient is φ = 6639740160.

The previous prime is 20002220123. The next prime is 20002220167. The reversal of 20002220124 is 42102220002.

It is a super-3 number, since 3×200022201243 (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002220123) 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, 3455307 + ... + 3461090.

It is an arithmetic number, because the mean of its divisors is an integer number (1952729702).

Almost surely, 220002220124 is an apocalyptic number.

It is an amenable number.

20002220124 is an abundant number, since it is smaller than the sum of its proper divisors (26863292724).

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

20002220124 is a wasteful number, since it uses less digits than its factorization.

20002220124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6916645 (or 6916643 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 20002220124 its reverse (42102220002), we get a palindrome (62104440126).

The spelling of 20002220124 in words is "twenty billion, two million, two hundred twenty thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 12 241 482 723 964 1446 2892 6916397 13832794 20749191 27665588 41498382 82996764 1666851677 3333703354 5000555031 6667406708 10001110062 20002220124