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51745014 = 2333130911
BaseRepresentation
bin1100010101100…
…1000011110110
310121100220211000
43011121003312
5101221320024
65045024130
71165553046
oct305310366
9117326730
1051745014
1127232882
12153b5046
13a949769
146c2d726
154821cc9
hex31590f6

51745014 has 32 divisors (see below), whose sum is σ = 118702080. Its totient is φ = 16691400.

The previous prime is 51745003. The next prime is 51745021. The reversal of 51745014 is 41054715.

It is a happy number.

51745014 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 13782 + ... + 17129.

It is an arithmetic number, because the mean of its divisors is an integer number (3709440).

Almost surely, 251745014 is an apocalyptic number.

51745014 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

51745014 is an abundant number, since it is smaller than the sum of its proper divisors (66957066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51745014 is a wasteful number, since it uses less digits than its factorization.

51745014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30953 (or 30947 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 51745014 is about 7193.4007256652. The cubic root of 51745014 is about 372.6400272318.

Adding to 51745014 its reverse (41054715), we get a palindrome (92799729).

The spelling of 51745014 in words is "fifty-one million, seven hundred forty-five thousand, fourteen".

Divisors: 1 2 3 6 9 18 27 31 54 62 93 186 279 558 837 1674 30911 61822 92733 185466 278199 556398 834597 958241 1669194 1916482 2874723 5749446 8624169 17248338 25872507 51745014