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22000130231 = 73301371647
BaseRepresentation
bin10100011111010011…
…110101100010110111
32002210020010102010012
4110133103311202313
5330024013131411
614035015050435
71406120010242
oct243723654267
962706112105
1022000130231
11936a555512
12431b970a1b
1320c7b99351
1410c9bb6259
1588b65718b
hex51f4f58b7

22000130231 has 4 divisors (see below), whose sum is σ = 22301501952. Its totient is φ = 21698758512.

The previous prime is 22000130203. The next prime is 22000130233. The reversal of 22000130231 is 13203100022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22000130231 - 26 = 22000130167 is a prime.

It is a super-2 number, since 2×220001302312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22000130233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150685751 + ... + 150685896.

It is an arithmetic number, because the mean of its divisors is an integer number (5575375488).

Almost surely, 222000130231 is an apocalyptic number.

22000130231 is a deficient number, since it is larger than the sum of its proper divisors (301371721).

22000130231 is an equidigital number, since it uses as much as digits as its factorization.

22000130231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301371720.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 22000130231 its reverse (13203100022), we get a palindrome (35203230253).

The spelling of 22000130231 in words is "twenty-two billion, one hundred thirty thousand, two hundred thirty-one".

Divisors: 1 73 301371647 22000130231