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22331580553 = 79728019549
BaseRepresentation
bin10100110011000100…
…001110000010001001
32010122022210211111001
4110303010032002021
5331213341034203
614131535135001
71420253205562
oct246304160211
963568724431
1022331580553
11951a65aaa7
1243b2974461
13214b7592b9
14111bc15169
158aa7c991d
hex53310e089

22331580553 has 4 divisors (see below), whose sum is σ = 22359600900. Its totient is φ = 22303560208.

The previous prime is 22331580539. The next prime is 22331580637. The reversal of 22331580553 is 35508513322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35508513322 = 217754256661.

It can be written as a sum of positive squares in 2 ways, for example, as 12528996489 + 9802584064 = 111933^2 + 99008^2 .

It is a cyclic number.

It is not a de Polignac number, because 22331580553 - 29 = 22331580041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22331580353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14008978 + ... + 14010571.

It is an arithmetic number, because the mean of its divisors is an integer number (5589900225).

Almost surely, 222331580553 is an apocalyptic number.

It is an amenable number.

22331580553 is a deficient number, since it is larger than the sum of its proper divisors (28020347).

22331580553 is an equidigital number, since it uses as much as digits as its factorization.

22331580553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28020346.

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 22331580553 in words is "twenty-two billion, three hundred thirty-one million, five hundred eighty thousand, five hundred fifty-three".

Divisors: 1 797 28019549 22331580553