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8189199404 = 2217235236061
BaseRepresentation
bin1111010000001110…
…10100010000101100
3210010201102102200122
413220013110100230
5113232413340104
63432334544112
7406636021631
oct75007242054
923121372618
108189199404
1135226537a1
121706668038
13a067b8329
14579878188
1532de1e6be
hex1e81d442c

8189199404 has 24 divisors (see below), whose sum is σ = 15833851488. Its totient is φ = 3686186240.

The previous prime is 8189199391. The next prime is 8189199407. The reversal of 8189199404 is 4049919818.

It is not an unprimeable number, because it can be changed into a prime (8189199407) 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, 2616467 + ... + 2619594.

It is an arithmetic number, because the mean of its divisors is an integer number (659743812).

Almost surely, 28189199404 is an apocalyptic number.

It is an amenable number.

8189199404 is a deficient number, since it is larger than the sum of its proper divisors (7644652084).

8189199404 is a wasteful number, since it uses less digits than its factorization.

8189199404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5236105 (or 5236103 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 53.

The square root of 8189199404 is about 90494.1954160597. The cubic root of 8189199404 is about 2015.6439316529.

The spelling of 8189199404 in words is "eight billion, one hundred eighty-nine million, one hundred ninety-nine thousand, four hundred four".

Divisors: 1 2 4 17 23 34 46 68 92 391 782 1564 5236061 10472122 20944244 89013037 120429403 178026074 240858806 356052148 481717612 2047299851 4094599702 8189199404