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8921768050 = 2521323358909
BaseRepresentation
bin10000100111100011…
…10110000001110010
3212000202212202221201
420103301312001302
5121232433034200
64033144241414
7434042530366
oct102361660162
925022782851
108921768050
113869118428
12188ba7026a
13ac24bb8c0
14608c8d2a6
153733c6c6a
hex213c76072

8921768050 has 48 divisors (see below), whose sum is σ = 17947991880. Its totient is φ = 3279997440.

The previous prime is 8921768033. The next prime is 8921768069. The reversal of 8921768050 is 508671298.

It can be written as a sum of positive squares in 12 ways, for example, as 1746153369 + 7175614681 = 41787^2 + 84709^2 .

It is a super-3 number, since 3×89217680503 (a number of 31 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121996 + ... + 180904.

Almost surely, 28921768050 is an apocalyptic number.

8921768050 is an abundant number, since it is smaller than the sum of its proper divisors (9026223830).

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

8921768050 is a wasteful number, since it uses less digits than its factorization.

8921768050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59167 (or 59162 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 46.

The square root of 8921768050 is about 94455.1112963190. Note that the first 3 decimals coincide. The cubic root of 8921768050 is about 2074.0392746120.

The spelling of 8921768050 in words is "eight billion, nine hundred twenty-one million, seven hundred sixty-eight thousand, fifty".

Divisors: 1 2 5 10 13 25 26 50 65 130 233 325 466 650 1165 2330 3029 5825 6058 11650 15145 30290 58909 75725 117818 151450 294545 589090 765817 1472725 1531634 2945450 3829085 7658170 13725797 19145425 27451594 38290850 68628985 137257970 178435361 343144925 356870722 686289850 892176805 1784353610 4460884025 8921768050