Search a number
-
+
22655328980 = 2251132766449
BaseRepresentation
bin10101000110010111…
…001110001011010100
32011110212222221211112
4111012113032023110
5332344231011410
614224022154152
71431264055544
oct250627161324
964425887745
1022655328980
119676384a89
124483282958
1321a085070b
14114cc0b324
158c8e2a105
hex5465ce2d4

22655328980 has 12 divisors (see below), whose sum is σ = 47576190900. Its totient is φ = 9062131584.

The previous prime is 22655328979. The next prime is 22655328991. The reversal of 22655328980 is 8982355622.

It can be written as a sum of positive squares in 2 ways, for example, as 16004274064 + 6651054916 = 126508^2 + 81554^2 .

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 566383205 + ... + 566383244.

It is an arithmetic number, because the mean of its divisors is an integer number (3964682575).

Almost surely, 222655328980 is an apocalyptic number.

22655328980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22655328980 is an abundant number, since it is smaller than the sum of its proper divisors (24920861920).

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

22655328980 is a wasteful number, since it uses less digits than its factorization.

22655328980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132766458 (or 1132766456 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 50.

The spelling of 22655328980 in words is "twenty-two billion, six hundred fifty-five million, three hundred twenty-eight thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 1132766449 2265532898 4531065796 5663832245 11327664490 22655328980