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14157581489 = 38513676339
BaseRepresentation
bin11010010111101101…
…11000110010110001
31100112122222122201222
431023312320302301
5212443320101424
610300502034425
71010560312532
oct151366706261
940478878658
1014157581489
116005649577
1228b1418a15
13144816386c
149843b6689
1557cdade5e
hex34bdb8cb1

14157581489 has 4 divisors (see below), whose sum is σ = 14161261680. Its totient is φ = 14153901300.

The previous prime is 14157581447. The next prime is 14157581491. The reversal of 14157581489 is 98418575141.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98418575141 = 103955520147.

It is a cyclic number.

It is not a de Polignac number, because 14157581489 - 232 = 9862614193 is a prime.

It is a super-2 number, since 2×141575814892 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14157581489.

It is not an unprimeable number, because it can be changed into a prime (14157781489) 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 3 ways as a sum of consecutive naturals, for example, 1834319 + ... + 1842020.

It is an arithmetic number, because the mean of its divisors is an integer number (3540315420).

Almost surely, 214157581489 is an apocalyptic number.

It is an amenable number.

14157581489 is a deficient number, since it is larger than the sum of its proper divisors (3680191).

14157581489 is an equidigital number, since it uses as much as digits as its factorization.

14157581489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3680190.

The product of its digits is 1612800, while the sum is 53.

The spelling of 14157581489 in words is "fourteen billion, one hundred fifty-seven million, five hundred eighty-one thousand, four hundred eighty-nine".

Divisors: 1 3851 3676339 14157581489