Search a number
-
+
561195804 = 223133597409
BaseRepresentation
bin100001011100110…
…010101100011100
31110002222200220210
4201130302230130
52122131231204
6131404212420
716623041241
oct4134625434
91402880823
10561195804
11268864794
12137b3a110
138c360430
14547655c8
1534405389
hex21732b1c

561195804 has 24 divisors (see below), whose sum is σ = 1410184720. Its totient is φ = 172675584.

The previous prime is 561195793. The next prime is 561195841. The reversal of 561195804 is 408591165.

It is a super-3 number, since 3×5611958043 (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1798549 + ... + 1798860.

Almost surely, 2561195804 is an apocalyptic number.

It is an amenable number.

561195804 is an abundant number, since it is smaller than the sum of its proper divisors (848988916).

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

561195804 is a wasteful number, since it uses less digits than its factorization.

561195804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3597429 (or 3597427 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 561195804 is about 23689.5716297277. The cubic root of 561195804 is about 824.8433392156.

The spelling of 561195804 in words is "five hundred sixty-one million, one hundred ninety-five thousand, eight hundred four".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 3597409 7194818 10792227 14389636 21584454 43168908 46766317 93532634 140298951 187065268 280597902 561195804