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20224010420 = 2251099277069
BaseRepresentation
bin10010110101011100…
…011110100010110100
31221012110001011202222
4102311130132202310
5312404321313140
613142450421512
71314112152335
oct226534364264
957173034688
1020224010420
118638a213a9
123b04b91898
131ba3c1a893
14d9bd5828c
157d57695b5
hex4b571e8b4

20224010420 has 24 divisors (see below), whose sum is σ = 42860063400. Its totient is φ = 8015386752.

The previous prime is 20224010399. The next prime is 20224010473. The reversal of 20224010420 is 2401042202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2049735076 + 18174275344 = 45274^2 + 134812^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4636355 + ... + 4640714.

It is an arithmetic number, because the mean of its divisors is an integer number (1785835975).

Almost surely, 220224010420 is an apocalyptic number.

20224010420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20224010420 is an abundant number, since it is smaller than the sum of its proper divisors (22636052980).

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

20224010420 is a wasteful number, since it uses less digits than its factorization.

20224010420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9277187 (or 9277185 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 20224010420 its reverse (2401042202), we get a palindrome (22625052622).

The spelling of 20224010420 in words is "twenty billion, two hundred twenty-four million, ten thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 109 218 436 545 1090 2180 9277069 18554138 37108276 46385345 92770690 185541380 1011200521 2022401042 4044802084 5056002605 10112005210 20224010420