Search a number
-
+
1020000325 = 52291406897
BaseRepresentation
bin111100110010111…
…111100001000101
32122002022101101211
4330302333201011
54042110002300
6245114051421
734163600611
oct7462774105
92562271354
101020000325
11483844383
12245719b71
131334207b6
1499676341
155e8324ba
hex3ccbf845

1020000325 has 12 divisors (see below), whose sum is σ = 1308415140. Its totient is φ = 787861760.

The previous prime is 1020000301. The next prime is 1020000329. The reversal of 1020000325 is 5230000201.

It can be written as a sum of positive squares in 6 ways, for example, as 41499364 + 978500961 = 6442^2 + 31281^2 .

It is not a de Polignac number, because 1020000325 - 219 = 1019476037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020000329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 702724 + ... + 704173.

It is an arithmetic number, because the mean of its divisors is an integer number (109034595).

Almost surely, 21020000325 is an apocalyptic number.

It is an amenable number.

1020000325 is a deficient number, since it is larger than the sum of its proper divisors (288414815).

1020000325 is a wasteful number, since it uses less digits than its factorization.

1020000325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1406936 (or 1406931 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 1020000325 is about 31937.4439334146. The cubic root of 1020000325 is about 1006.6228164726.

Adding to 1020000325 its reverse (5230000201), we get a palindrome (6250000526).

The spelling of 1020000325 in words is "one billion, twenty million, three hundred twenty-five", and thus it is an aban number.

Divisors: 1 5 25 29 145 725 1406897 7034485 35172425 40800013 204000065 1020000325