Search a number
-
+
1300120225 = 5252004809
BaseRepresentation
bin100110101111110…
…0100001010100001
310100121101221122221
41031133210022201
510130312321400
6333002031041
744134560655
oct11537441241
93317357587
101300120225
1160797a628
123034a8481
1317947a911
14c4952a65
1579215c1a
hex4d7e42a1

1300120225 has 6 divisors (see below), whose sum is σ = 1612149110. Its totient is φ = 1040096160.

The previous prime is 1300120219. The next prime is 1300120231. The reversal of 1300120225 is 5220210031.

It is an interprime number because it is at equal distance from previous prime (1300120219) and next prime (1300120231).

It can be written as a sum of positive squares in 3 ways, for example, as 589824 + 1299530401 = 768^2 + 36049^2 .

It is not a de Polignac number, because 1300120225 - 29 = 1300119713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1300120199 and 1300120208.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26002380 + ... + 26002429.

Almost surely, 21300120225 is an apocalyptic number.

It is an amenable number.

1300120225 is a deficient number, since it is larger than the sum of its proper divisors (312028885).

1300120225 is an equidigital number, since it uses as much as digits as its factorization.

1300120225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52004819 (or 52004814 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1300120225 is about 36057.1799368725. The cubic root of 1300120225 is about 1091.4265263085.

Adding to 1300120225 its reverse (5220210031), we get a palindrome (6520330256).

The spelling of 1300120225 in words is "one billion, three hundred million, one hundred twenty thousand, two hundred twenty-five".

Divisors: 1 5 25 52004809 260024045 1300120225