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15130142 = 27565071
BaseRepresentation
bin111001101101…
…111000011110
31001110200122122
4321231320132
512333131032
61300142542
7242414126
oct71557036
931420578
1015130142
1185a4555
125097a52
133199961
14201bc86
1514dd012
hexe6de1e

15130142 has 4 divisors (see below), whose sum is σ = 22695216. Its totient is φ = 7565070.

The previous prime is 15130133. The next prime is 15130163. The reversal of 15130142 is 24103151.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 15130142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3782534 + ... + 3782537.

It is an arithmetic number, because the mean of its divisors is an integer number (5673804).

Almost surely, 215130142 is an apocalyptic number.

15130142 is a deficient number, since it is larger than the sum of its proper divisors (7565074).

15130142 is an equidigital number, since it uses as much as digits as its factorization.

15130142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7565073.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 15130142 is about 3889.7483209072. The cubic root of 15130142 is about 247.3323940909.

Adding to 15130142 its reverse (24103151), we get a palindrome (39233293).

The spelling of 15130142 in words is "fifteen million, one hundred thirty thousand, one hundred forty-two".

Divisors: 1 2 7565071 15130142