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14957869 = 115312973
BaseRepresentation
bin111001000011…
…110100101101
31001010221100011
4321003310231
512312122434
61252333221
7241065643
oct71036455
931127304
1014957869
118497083
125014211
133139414
141db5193
1514a6e64
hexe43d2d

14957869 has 4 divisors (see below), whose sum is σ = 14971996. Its totient is φ = 14943744.

The previous prime is 14957863. The next prime is 14957893. The reversal of 14957869 is 96875941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96875941 = 131739511.

It can be written as a sum of positive squares in 2 ways, for example, as 4473225 + 10484644 = 2115^2 + 3238^2 .

It is a cyclic number.

It is not a de Polignac number, because 14957869 - 211 = 14955821 is a prime.

It is a super-2 number, since 2×149578692 = 447475690042322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14957863) 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, 5334 + ... + 7639.

It is an arithmetic number, because the mean of its divisors is an integer number (3742999).

Almost surely, 214957869 is an apocalyptic number.

It is an amenable number.

14957869 is a deficient number, since it is larger than the sum of its proper divisors (14127).

14957869 is a wasteful number, since it uses less digits than its factorization.

14957869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14126.

The product of its digits is 544320, while the sum is 49.

The square root of 14957869 is about 3867.5404328850. The cubic root of 14957869 is about 246.3900931830.

The spelling of 14957869 in words is "fourteen million, nine hundred fifty-seven thousand, eight hundred sixty-nine".

Divisors: 1 1153 12973 14957869