Search a number
-
+
315110311025 = 5282971519153
BaseRepresentation
bin1001001010111100000…
…10011100010001110001
31010010100120122100201012
410211132002130101301
520130321214423100
6400432031320305
731523504310266
oct4453602342161
91103316570635
10315110311025
11111701612654
12510a1980095
132393a48b753
1411373c7d26d
1582e4013135
hex495e09c471

315110311025 has 12 divisors (see below), whose sum is σ = 390784136652. Its totient is φ = 252057699840.

The previous prime is 315110310961. The next prime is 315110311049. The reversal of 315110311025 is 520113011513.

It can be written as a sum of positive squares in 6 ways, for example, as 5880895969 + 309229415056 = 76687^2 + 556084^2 .

It is not a de Polignac number, because 315110311025 - 26 = 315110310961 is a prime.

It is a super-2 number, since 2×3151103110252 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

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, 552152 + ... + 967001.

It is an arithmetic number, because the mean of its divisors is an integer number (32565344721).

Almost surely, 2315110311025 is an apocalyptic number.

It is an amenable number.

315110311025 is a deficient number, since it is larger than the sum of its proper divisors (75673825627).

315110311025 is a wasteful number, since it uses less digits than its factorization.

315110311025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1527460 (or 1527455 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 23.

Adding to 315110311025 its reverse (520113011513), we get a palindrome (835223322538).

The spelling of 315110311025 in words is "three hundred fifteen billion, one hundred ten million, three hundred eleven thousand, twenty-five".

Divisors: 1 5 25 8297 41485 207425 1519153 7595765 37978825 12604412441 63022062205 315110311025