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14939439529 = 721929192
BaseRepresentation
bin11011110100111010…
…11100000110101001
31102120011012011100011
431322131130012221
5221043444031104
610510232011521
71036133066200
oct157235340651
942504164304
1014939439529
116376a19043
122a8b230ba1
131541133c61
14a1a17c237
155c6850904
hex37a75c1a9

14939439529 has 27 divisors (see below), whose sum is σ = 18361310877. Its totient is φ = 12118073688.

The previous prime is 14939439521. The next prime is 14939439539. The reversal of 14939439529 is 92593493941.

It is a happy number.

The square root of 14939439529 is 122227.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 14939439529 - 23 = 14939439521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (14939439521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 16255732 + ... + 16256650.

It is an arithmetic number, because the mean of its divisors is an integer number (680048551).

Almost surely, 214939439529 is an apocalyptic number.

14939439529 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

14939439529 is the 122227-th square number.

14939439529 is the 61114-th centered octagonal number.

It is an amenable number.

14939439529 is a deficient number, since it is larger than the sum of its proper divisors (3421871348).

14939439529 is an frugal number, since it uses more digits than its factorization.

14939439529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1890 (or 945 counting only the distinct ones).

The product of its digits is 9447840, while the sum is 58.

The spelling of 14939439529 in words is "fourteen billion, nine hundred thirty-nine million, four hundred thirty-nine thousand, five hundred twenty-nine".

Divisors: 1 7 19 49 133 361 919 931 2527 6433 17461 17689 45031 122227 331759 844561 855589 2322313 5911927 16046659 16256191 41383489 112326613 304886521 786286291 2134205647 14939439529