Search a number
-
+
51271068 = 2234272589
BaseRepresentation
bin1100001110010…
…1010110011100
310120110211200110
43003211112130
5101111133233
65030530020
71161540222
oct303452634
9116424613
1051271068
1126a39792
1215206910
13a811b14
146b48b12
15477b663
hex30e559c

51271068 has 12 divisors (see below), whose sum is σ = 119632520. Its totient is φ = 17090352.

The previous prime is 51271067. The next prime is 51271127. The reversal of 51271068 is 86017215.

51271068 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51271067) 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, 2136283 + ... + 2136306.

Almost surely, 251271068 is an apocalyptic number.

It is an amenable number.

51271068 is an abundant number, since it is smaller than the sum of its proper divisors (68361452).

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

51271068 is a wasteful number, since it uses less digits than its factorization.

51271068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4272596 (or 4272594 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 51271068 is about 7160.3818333941. The cubic root of 51271068 is about 371.4988337351.

The spelling of 51271068 in words is "fifty-one million, two hundred seventy-one thousand, sixty-eight".

Divisors: 1 2 3 4 6 12 4272589 8545178 12817767 17090356 25635534 51271068