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15142039 = 113473967
BaseRepresentation
bin111001110000…
…110010010111
31001111021222021
4321300302113
512334021124
61300314011
7242463613
oct71606227
931437867
1015142039
118602490
1250a2907
1331a21b3
142022343
1514e17e4
hexe70c97

15142039 has 8 divisors (see below), whose sum is σ = 16570368. Its totient is φ = 13722360.

The previous prime is 15142033. The next prime is 15142051. The reversal of 15142039 is 93024151.

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

It is a cyclic number.

It is not a de Polignac number, because 15142039 - 27 = 15141911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15142033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1834 + ... + 5800.

It is an arithmetic number, because the mean of its divisors is an integer number (2071296).

Almost surely, 215142039 is an apocalyptic number.

15142039 is a deficient number, since it is larger than the sum of its proper divisors (1428329).

15142039 is a wasteful number, since it uses less digits than its factorization.

15142039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4325.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 15142039 is about 3891.2772967240. The cubic root of 15142039 is about 247.3972038502.

It can be divided in two parts, 1514 and 2039, that added together give a palindrome (3553).

The spelling of 15142039 in words is "fifteen million, one hundred forty-two thousand, thirty-nine".

Divisors: 1 11 347 3817 3967 43637 1376549 15142039