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34199720 = 235854993
BaseRepresentation
bin1000001001110…
…1100010101000
32101100112012022
42002131202220
532223342340
63221004012
7563456432
oct202354250
971315168
1034199720
1118339835
12b553608
137115729
144783652
1530083b5
hex209d8a8

34199720 has 16 divisors (see below), whose sum is σ = 76949460. Its totient is φ = 13679872.

The previous prime is 34199707. The next prime is 34199741. The reversal of 34199720 is 2799143.

It can be written as a sum of positive squares in 2 ways, for example, as 34128964 + 70756 = 5842^2 + 266^2 .

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, 427457 + ... + 427536.

Almost surely, 234199720 is an apocalyptic number.

It is an amenable number.

34199720 is an abundant number, since it is smaller than the sum of its proper divisors (42749740).

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

34199720 is a wasteful number, since it uses less digits than its factorization.

34199720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855004 (or 855000 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 34199720 is about 5848.0526673415. The cubic root of 34199720 is about 324.5942708198.

The spelling of 34199720 in words is "thirty-four million, one hundred ninety-nine thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 854993 1709986 3419972 4274965 6839944 8549930 17099860 34199720