Search a number
-
+
8868238940 = 2251140310177
BaseRepresentation
bin10000100001001011…
…01001011001011100
3211220001011012211002
420100211221121130
5121130232121230
64023553045432
7432522534011
oct102045513134
924801135732
108868238940
1138409871a0
121875b56878
13ab4399082
14601b17708
1536d851545
hex21096965c

8868238940 has 24 divisors (see below), whose sum is σ = 20316329712. Its totient is φ = 3224814080.

The previous prime is 8868238937. The next prime is 8868238949. The reversal of 8868238940 is 498328688.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8868238949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20154869 + ... + 20155308.

It is an arithmetic number, because the mean of its divisors is an integer number (846513738).

Almost surely, 28868238940 is an apocalyptic number.

It is an amenable number.

8868238940 is an abundant number, since it is smaller than the sum of its proper divisors (11448090772).

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

8868238940 is a wasteful number, since it uses less digits than its factorization.

8868238940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40310197 (or 40310195 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 56.

The square root of 8868238940 is about 94171.3275896650. The cubic root of 8868238940 is about 2069.8829887105.

The spelling of 8868238940 in words is "eight billion, eight hundred sixty-eight million, two hundred thirty-eight thousand, nine hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 40310177 80620354 161240708 201550885 403101770 443411947 806203540 886823894 1773647788 2217059735 4434119470 8868238940