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51234895 = 529713449
BaseRepresentation
bin1100001101110…
…0100001001111
310120102000001201
43003130201033
5101104004040
65030050331
71161326605
oct303344117
9116360051
1051234895
1126a14598
12151a99a7
13a7cb50a
146b39875
154770a9a
hex30dc84f

51234895 has 8 divisors (see below), whose sum is σ = 61520400. Its totient is φ = 40962240.

The previous prime is 51234893. The next prime is 51234929. The reversal of 51234895 is 59843215.

51234895 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51234895 - 21 = 51234893 is a prime.

It is a super-2 number, since 2×512348952 = 5250028931322050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51234893) 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 7 ways as a sum of consecutive naturals, for example, 13131 + ... + 16579.

It is an arithmetic number, because the mean of its divisors is an integer number (7690050).

Almost surely, 251234895 is an apocalyptic number.

51234895 is a deficient number, since it is larger than the sum of its proper divisors (10285505).

51234895 is a wasteful number, since it uses less digits than its factorization.

51234895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6425.

The product of its digits is 43200, while the sum is 37.

The square root of 51234895 is about 7157.8554749310. The cubic root of 51234895 is about 371.4114459912.

The spelling of 51234895 in words is "fifty-one million, two hundred thirty-four thousand, eight hundred ninety-five".

Divisors: 1 5 2971 3449 14855 17245 10246979 51234895