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51714457 = 307168451
BaseRepresentation
bin1100010101000…
…1100110011001
310121022100220021
43011101212121
5101214330312
65044230441
71165365004
oct305214631
9117270807
1051714457
1127211923
121539b421
13a938892
146c2253b
154817c07
hex3151999

51714457 has 4 divisors (see below), whose sum is σ = 51883216. Its totient is φ = 51545700.

The previous prime is 51714437. The next prime is 51714463. The reversal of 51714457 is 75441715.

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: 75441715 = 515088343.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-51714457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51714437) 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, 83919 + ... + 84532.

It is an arithmetic number, because the mean of its divisors is an integer number (12970804).

Almost surely, 251714457 is an apocalyptic number.

It is an amenable number.

51714457 is a deficient number, since it is larger than the sum of its proper divisors (168759).

51714457 is a wasteful number, since it uses less digits than its factorization.

51714457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168758.

The product of its digits is 19600, while the sum is 34.

The square root of 51714457 is about 7191.2764513680. The cubic root of 51714457 is about 372.5666610426.

The spelling of 51714457 in words is "fifty-one million, seven hundred fourteen thousand, four hundred fifty-seven".

Divisors: 1 307 168451 51714457