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15142712 = 2313145603
BaseRepresentation
bin111001110000…
…111100111000
31001111022220012
4321300330320
512334031322
61300321052
7242465564
oct71607470
931438805
1015142712
118602a42
1250a3188
1331a25b0
1420226a4
1514e1ae2
hexe70f38

15142712 has 16 divisors (see below), whose sum is σ = 30576840. Its totient is φ = 6988896.

The previous prime is 15142711. The next prime is 15142723. The reversal of 15142712 is 21724151.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15142711) 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 3 ways as a sum of consecutive naturals, for example, 72698 + ... + 72905.

Almost surely, 215142712 is an apocalyptic number.

It is an amenable number.

15142712 is an abundant number, since it is smaller than the sum of its proper divisors (15434128).

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

15142712 is a wasteful number, since it uses less digits than its factorization.

15142712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145622 (or 145618 counting only the distinct ones).

The product of its digits is 560, while the sum is 23.

The square root of 15142712 is about 3891.3637712247. The cubic root of 15142712 is about 247.4008690513.

Adding to 15142712 its reverse (21724151), we get a palindrome (36866863).

The spelling of 15142712 in words is "fifteen million, one hundred forty-two thousand, seven hundred twelve".

Divisors: 1 2 4 8 13 26 52 104 145603 291206 582412 1164824 1892839 3785678 7571356 15142712