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15243142 = 222693359
BaseRepresentation
bin111010001001…
…011110000110
31001200102122211
4322021132012
512400240032
61302414034
7243364435
oct72113606
931612584
1015243142
118671442
12513131a
133209215
14204b11c
151511747
hexe89786

15243142 has 8 divisors (see below), whose sum is σ = 22881600. Its totient is φ = 7615944.

The previous prime is 15243139. The next prime is 15243161. The reversal of 15243142 is 24134251.

15243142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 2859 + ... + 6217.

It is an arithmetic number, because the mean of its divisors is an integer number (2860200).

Almost surely, 215243142 is an apocalyptic number.

15243142 is a deficient number, since it is larger than the sum of its proper divisors (7638458).

15243142 is a wasteful number, since it uses less digits than its factorization.

15243142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5630.

The product of its digits is 960, while the sum is 22.

The square root of 15243142 is about 3904.2466622897. The cubic root of 15243142 is about 247.9466044428.

Adding to 15243142 its reverse (24134251), we get a palindrome (39377393).

The spelling of 15243142 in words is "fifteen million, two hundred forty-three thousand, one hundred forty-two".

Divisors: 1 2 2269 3359 4538 6718 7621571 15243142