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8922745988 = 2213171591269
BaseRepresentation
bin10000100111101011…
…00100110010000100
3212000211201110102122
420103311210302010
5121233210332423
64033221225112
7434054042462
oct102365446204
925024643378
108922745988
113869726142
121890262198
13ac2771a70
14609065832
1537351b8c8
hex213d64c84

8922745988 has 12 divisors (see below), whose sum is σ = 16815944460. Its totient is φ = 4118190432.

The previous prime is 8922745921. The next prime is 8922746011. The reversal of 8922745988 is 8895472298.

It can be written as a sum of positive squares in 2 ways, for example, as 2678269504 + 6244476484 = 51752^2 + 79022^2 .

It is a super-2 number, since 2×89227459882 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8922745988.

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, 85795583 + ... + 85795686.

It is an arithmetic number, because the mean of its divisors is an integer number (1401328705).

Almost surely, 28922745988 is an apocalyptic number.

It is an amenable number.

8922745988 is a deficient number, since it is larger than the sum of its proper divisors (7893198472).

8922745988 is a wasteful number, since it uses less digits than its factorization.

8922745988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171591286 (or 171591284 counting only the distinct ones).

The product of its digits is 23224320, while the sum is 62.

The square root of 8922745988 is about 94460.2878886149. The cubic root of 8922745988 is about 2074.1150521075.

The spelling of 8922745988 in words is "eight billion, nine hundred twenty-two million, seven hundred forty-five thousand, nine hundred eighty-eight".

Divisors: 1 2 4 13 26 52 171591269 343182538 686365076 2230686497 4461372994 8922745988