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20221030625 = 54832511553
BaseRepresentation
bin10010110101010001…
…000111000011100001
31221012020102210021012
4102311101013003201
5312403040440000
613142302510305
71314044632025
oct226521070341
957166383235
1020221030625
118637276664
123b03b95395
131ba34164a3
14d9b7c0385
157d537b735
hex4b54470e1

20221030625 has 40 divisors (see below), whose sum is σ = 25691051232. Its totient is φ = 15908000000.

The previous prime is 20221030567. The next prime is 20221030721. The reversal of 20221030625 is 52603012202.

It is not a de Polignac number, because 20221030625 - 28 = 20221030369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20221030625.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 13019849 + ... + 13021401.

Almost surely, 220221030625 is an apocalyptic number.

20221030625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20221030625 is a deficient number, since it is larger than the sum of its proper divisors (5470020607).

20221030625 is an equidigital number, since it uses as much as digits as its factorization.

20221030625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1907 (or 1892 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 20221030625 its reverse (52603012202), we get a palindrome (72824042827).

The spelling of 20221030625 in words is "twenty billion, two hundred twenty-one million, thirty thousand, six hundred twenty-five".

Divisors: 1 5 25 83 125 251 415 625 1255 1553 2075 6275 7765 10375 20833 31375 38825 51875 104165 128899 156875 194125 389803 520825 644495 970625 1949015 2604125 3222475 9745075 13020625 16112375 32353649 48725375 80561875 161768245 243626875 808841225 4044206125 20221030625