Search a number
-
+
1351350025 = 52157344293
BaseRepresentation
bin101000010001011…
…1111011100001001
310111011210200201221
41100202333130021
510231421200100
6342032042041
745326166664
oct12042773411
93434720657
101351350025
11633890303
12318693321
13186c769cc
14cb68a6db
157d98501a
hex508bf709

1351350025 has 12 divisors (see below), whose sum is σ = 1686352012. Its totient is φ = 1074191040.

The previous prime is 1351350017. The next prime is 1351350031. The reversal of 1351350025 is 5200531531.

It can be written as a sum of positive squares in 6 ways, for example, as 126630009 + 1224720016 = 11253^2 + 34996^2 .

It is not a de Polignac number, because 1351350025 - 23 = 1351350017 is a prime.

It is a super-2 number, since 2×13513500252 = 3652293780135001250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 168222 + ... + 176071.

Almost surely, 21351350025 is an apocalyptic number.

It is an amenable number.

1351350025 is a deficient number, since it is larger than the sum of its proper divisors (335001987).

1351350025 is a wasteful number, since it uses less digits than its factorization.

1351350025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344460 (or 344455 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 1351350025 is about 36760.7130643572. The cubic root of 1351350025 is about 1105.5777368268.

Adding to 1351350025 its reverse (5200531531), we get a palindrome (6551881556).

The spelling of 1351350025 in words is "one billion, three hundred fifty-one million, three hundred fifty thousand, twenty-five".

Divisors: 1 5 25 157 785 3925 344293 1721465 8607325 54054001 270270005 1351350025