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14030639401 = 31238212
BaseRepresentation
bin11010001000100101…
…01001000100101001
31100012211010022221011
431010102221010221
5212213320430101
610240125143521
71004456316142
oct150422510451
940184108834
1014030639401
115a4aa26059
1228769baba1
131427a78bbc
149715b0ac9
15571b86751
hex3444a9129

14030639401 has 9 divisors (see below), whose sum is σ = 14501635959. Its totient is φ = 13574484600.

The previous prime is 14030639383. The next prime is 14030639407. The reversal of 14030639401 is 10493603041.

The square root of 14030639401 is 118451.

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

It can be written as a sum of positive squares in only one way, i.e., 12600287001 + 1430352400 = 112251^2 + 37820^2 .

It is not a de Polignac number, because 14030639401 - 229 = 13493768489 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14030639407) 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 8 ways as a sum of consecutive naturals, for example, 3670071 + ... + 3673891.

Almost surely, 214030639401 is an apocalyptic number.

14030639401 is the 118451-st square number.

14030639401 is the 59226-th centered octagonal number.

It is an amenable number.

14030639401 is a deficient number, since it is larger than the sum of its proper divisors (470996558).

14030639401 is an frugal number, since it uses more digits than its factorization.

14030639401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7704 (or 3852 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The spelling of 14030639401 in words is "fourteen billion, thirty million, six hundred thirty-nine thousand, four hundred one".

Divisors: 1 31 961 3821 118451 3671981 14600041 452601271 14030639401