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8768399442 = 2311791681703
BaseRepresentation
bin10000010101010001…
…10010100001010010
3211122002021211202220
420022220302201102
5120424202240232
64010025121510
7430201110525
oct101250624122
924562254686
108768399442
11379a595310
121848629296
13a997b064a
145d2768bbc
15364bce42c
hex20aa32852

8768399442 has 32 divisors (see below), whose sum is σ = 19373230080. Its totient is φ = 2623455120.

The previous prime is 8768399407. The next prime is 8768399443. The reversal of 8768399442 is 2449938678.

It is a super-2 number, since 2×87683994422 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8768399443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 835638 + ... + 846065.

It is an arithmetic number, because the mean of its divisors is an integer number (605413440).

Almost surely, 28768399442 is an apocalyptic number.

8768399442 is an abundant number, since it is smaller than the sum of its proper divisors (10604830638).

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

8768399442 is a wasteful number, since it uses less digits than its factorization.

8768399442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681798.

The product of its digits is 20901888, while the sum is 60.

The square root of 8768399442 is about 93639.7321760373. The cubic root of 8768399442 is about 2062.0860072508.

The spelling of 8768399442 in words is "eight billion, seven hundred sixty-eight million, three hundred ninety-nine thousand, four hundred forty-two".

Divisors: 1 2 3 6 11 22 33 66 79 158 237 474 869 1738 2607 5214 1681703 3363406 5045109 10090218 18498733 36997466 55496199 110992398 132854537 265709074 398563611 797127222 1461399907 2922799814 4384199721 8768399442