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51676651 = 1321717987
BaseRepresentation
bin1100010100100…
…0010111101011
310121020110001001
43011020113223
5101212123101
65043335431
71165146535
oct305102753
9117213031
1051676651
1127196484
1215381577
13a924600
146c12855
15480b901
hex31485eb

51676651 has 12 divisors (see below), whose sum is σ = 59252472. Its totient is φ = 44893056.

The previous prime is 51676621. The next prime is 51676661. The reversal of 51676651 is 15667615.

51676651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51676651 - 29 = 51676139 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51676651.

It is not an unprimeable number, because it can be changed into a prime (51676621) 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 11 ways as a sum of consecutive naturals, for example, 6121 + ... + 11866.

It is an arithmetic number, because the mean of its divisors is an integer number (4937706).

Almost surely, 251676651 is an apocalyptic number.

51676651 is a deficient number, since it is larger than the sum of its proper divisors (7575821).

51676651 is a wasteful number, since it uses less digits than its factorization.

51676651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18030 (or 18017 counting only the distinct ones).

The product of its digits is 37800, while the sum is 37.

The square root of 51676651 is about 7188.6473692900. The cubic root of 51676651 is about 372.4758502729.

The spelling of 51676651 in words is "fifty-one million, six hundred seventy-six thousand, six hundred fifty-one".

Divisors: 1 13 17 169 221 2873 17987 233831 305779 3039803 3975127 51676651