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15200142 = 2317149021
BaseRepresentation
bin111001111110…
…111110001110
31001121020200020
4321332332032
512342401032
61301443010
7243125166
oct71767616
931536606
1015200142
118642101
125110466
1331c2789
1420395a6
151503b2c
hexe7ef8e

15200142 has 16 divisors (see below), whose sum is σ = 32188752. Its totient is φ = 4768640.

The previous prime is 15200083. The next prime is 15200149. The reversal of 15200142 is 24100251.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15200149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74409 + ... + 74612.

It is an arithmetic number, because the mean of its divisors is an integer number (2011797).

Almost surely, 215200142 is an apocalyptic number.

15200142 is an abundant number, since it is smaller than the sum of its proper divisors (16988610).

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

15200142 is a wasteful number, since it uses less digits than its factorization.

15200142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149043.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 15200142 is about 3898.7359489968. The cubic root of 15200142 is about 247.7132373089.

Adding to 15200142 its reverse (24100251), we get a palindrome (39300393).

The spelling of 15200142 in words is "fifteen million, two hundred thousand, one hundred forty-two".

Divisors: 1 2 3 6 17 34 51 102 149021 298042 447063 894126 2533357 5066714 7600071 15200142