Search a number
-
+
199999572 = 22316666631
BaseRepresentation
bin10111110101111…
…00000001010100
3111221100000211120
423322330001110
5402144441242
631502403540
74645653063
oct1372740124
9457300746
10199999572
11a2992703
1256b905b0
1332587056
141c7c21da
15128591ec
hexbebc054

199999572 has 12 divisors (see below), whose sum is σ = 466665696. Its totient is φ = 66666520.

The previous prime is 199999483. The next prime is 199999589. The reversal of 199999572 is 275999991.

199999572 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 8333304 + ... + 8333327.

It is an arithmetic number, because the mean of its divisors is an integer number (38888808).

Almost surely, 2199999572 is an apocalyptic number.

199999572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

199999572 is an abundant number, since it is smaller than the sum of its proper divisors (266666124).

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

199999572 is a wasteful number, since it uses less digits than its factorization.

199999572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16666638 (or 16666636 counting only the distinct ones).

The product of its digits is 4133430, while the sum is 60.

The square root of 199999572 is about 14142.1204916377. The cubic root of 199999572 is about 584.8031304824.

The spelling of 199999572 in words is "one hundred ninety-nine million, nine hundred ninety-nine thousand, five hundred seventy-two".

Divisors: 1 2 3 4 6 12 16666631 33333262 49999893 66666524 99999786 199999572