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22300142420 = 2251115007121
BaseRepresentation
bin10100110001001100…
…010010101101010100
32010120010122121110202
4110301030102231110
5331132314024140
614124453240032
71416422040323
oct246114225524
963503577422
1022300142420
119503938076
1243a4333018
13214509c85a
1411179900ba
158a7b69915
hex531312b54

22300142420 has 12 divisors (see below), whose sum is σ = 46830299124. Its totient is φ = 8920056960.

The previous prime is 22300142413. The next prime is 22300142483. The reversal of 22300142420 is 2424100322.

It can be written as a sum of positive squares in 2 ways, for example, as 10935303184 + 11364839236 = 104572^2 + 106606^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 1115007121 = 22300142420 / (2 + 2 + 3 + 0 + 0 + 1 + 4 + 2 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 22300142392 and 22300142401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 557503541 + ... + 557503580.

It is an arithmetic number, because the mean of its divisors is an integer number (3902524927).

Almost surely, 222300142420 is an apocalyptic number.

22300142420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22300142420 is an abundant number, since it is smaller than the sum of its proper divisors (24530156704).

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

22300142420 is a wasteful number, since it uses less digits than its factorization.

22300142420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115007130 (or 1115007128 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 22300142420 its reverse (2424100322), we get a palindrome (24724242742).

The spelling of 22300142420 in words is "twenty-two billion, three hundred million, one hundred forty-two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 1115007121 2230014242 4460028484 5575035605 11150071210 22300142420