Search a number
-
+
486951356761 = 6978192
BaseRepresentation
bin1110001011000001001…
…00000000100101011001
31201112220110212221210121
413011200210000211121
530434234021404021
61011411413313241
750116052144602
oct7054044004531
91645813787717
10486951356761
11178573389721
127a45b035821
1336bc49773bc
14197d6234da9
15ca002c3741
hex7160900959

486951356761 has 3 divisors (see below), whose sum is σ = 486952054581. Its totient is φ = 486950658942.

The previous prime is 486951356753. The next prime is 486951356779. The reversal of 486951356761 is 167653159684.

It is a happy number.

The square root of 486951356761 is 697819.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 486951356761 - 23 = 486951356753 is a prime.

It is a super-2 number, since 2×4869513567612 (a number of 24 digits) contains 22 as substring.

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 486951356761.

It is not an unprimeable number, because it can be changed into a prime (486951356741) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 348910 + ... + 1046728.

It is an arithmetic number, because the mean of its divisors is an integer number (162317351527).

Almost surely, 2486951356761 is an apocalyptic number.

486951356761 is the 697819-th square number.

486951356761 is the 348910-th centered octagonal number.

It is an amenable number.

486951356761 is a deficient number, since it is larger than the sum of its proper divisors (697820).

486951356761 is an frugal number, since it uses more digits than its factorization.

486951356761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1395638 (or 697819 counting only the distinct ones).

The product of its digits is 32659200, while the sum is 61.

The spelling of 486951356761 in words is "four hundred eighty-six billion, nine hundred fifty-one million, three hundred fifty-six thousand, seven hundred sixty-one".

Divisors: 1 697819 486951356761