Search a number
-
+
299219142 = 231722712923
BaseRepresentation
bin10001110101011…
…011100011000110
3202212000220111110
4101311123203012
51103100003032
645405145450
710262215005
oct2165334306
9685026443
10299219142
111439a0852
128425b286
1349cb6561
142ba4cc3c
151b4077cc
hex11d5b8c6

299219142 has 32 divisors (see below), whose sum is σ = 636481152. Its totient is φ = 93451904.

The previous prime is 299219117. The next prime is 299219143. The reversal of 299219142 is 241912992.

299219142 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 299219142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (299219143) 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, 16693 + ... + 29615.

It is an arithmetic number, because the mean of its divisors is an integer number (19890036).

Almost surely, 2299219142 is an apocalyptic number.

299219142 is an abundant number, since it is smaller than the sum of its proper divisors (337262010).

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

299219142 is a wasteful number, since it uses less digits than its factorization.

299219142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13172.

The product of its digits is 23328, while the sum is 39.

The square root of 299219142 is about 17297.9519596974. The cubic root of 299219142 is about 668.8516320107.

The spelling of 299219142 in words is "two hundred ninety-nine million, two hundred nineteen thousand, one hundred forty-two".

Divisors: 1 2 3 6 17 34 51 102 227 454 681 1362 3859 7718 11577 12923 23154 25846 38769 77538 219691 439382 659073 1318146 2933521 5867042 8800563 17601126 49869857 99739714 149609571 299219142