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14875293887 = 103144420329
BaseRepresentation
bin11011101101010001…
…01111100010111111
31102101200111020001122
431312220233202333
5220431033401022
610500021101155
71034423624516
oct156650574277
942350436048
1014875293887
116343796513
122a718577bb
131530a6505c
14a1184167d
155c0dce742
hex376a2f8bf

14875293887 has 4 divisors (see below), whose sum is σ = 15019714320. Its totient is φ = 14730873456.

The previous prime is 14875293809. The next prime is 14875293889. The reversal of 14875293887 is 78839257841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78839257841 = 82395794967.

It is a cyclic number.

It is not a de Polignac number, because 14875293887 - 222 = 14871099583 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 (14875293889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72210062 + ... + 72210267.

It is an arithmetic number, because the mean of its divisors is an integer number (3754928580).

Almost surely, 214875293887 is an apocalyptic number.

14875293887 is a deficient number, since it is larger than the sum of its proper divisors (144420433).

14875293887 is a wasteful number, since it uses less digits than its factorization.

14875293887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144420432.

The product of its digits is 27095040, while the sum is 62.

The spelling of 14875293887 in words is "fourteen billion, eight hundred seventy-five million, two hundred ninety-three thousand, eight hundred eighty-seven".

Divisors: 1 103 144420329 14875293887