Search a number
-
+
15130445142 = 2319132723203
BaseRepresentation
bin11100001011101100…
…00100010101010110
31110001110121020210010
432011312010111112
5221441343221032
610541213541050
71043642442651
oct160566042526
943043536703
1015130445142
11646481841a
122b231a4786
13157188c327
14a3769c898
155d84ceccc
hex385d84556

15130445142 has 16 divisors (see below), whose sum is σ = 31853568960. Its totient is φ = 4778035272.

The previous prime is 15130445093. The next prime is 15130445147. The reversal of 15130445142 is 24154403151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15130445147) 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, 66361488 + ... + 66361715.

It is an arithmetic number, because the mean of its divisors is an integer number (1990848060).

Almost surely, 215130445142 is an apocalyptic number.

15130445142 is an abundant number, since it is smaller than the sum of its proper divisors (16723123818).

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

15130445142 is a wasteful number, since it uses less digits than its factorization.

15130445142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132723227.

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 15130445142 its reverse (24154403151), we get a palindrome (39284848293).

The spelling of 15130445142 in words is "fifteen billion, one hundred thirty million, four hundred forty-five thousand, one hundred forty-two".

Divisors: 1 2 3 6 19 38 57 114 132723203 265446406 398169609 796339218 2521740857 5043481714 7565222571 15130445142