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3115122325 = 52722542957
BaseRepresentation
bin1011100110101100…
…1111111010010101
322001002122121110221
42321223033322111
522334432403300
61233035514341
7140124050200
oct27153177225
98032577427
103115122325
111359450567
1272b2b89b1
133a84c1263
14217a12937
1513373431a
hexb9acfe95

3115122325 has 18 divisors (see below), whose sum is σ = 4493406786. Its totient is φ = 2136083040.

The previous prime is 3115122301. The next prime is 3115122337. The reversal of 3115122325 is 5232215113.

It can be written as a sum of positive squares in 3 ways, for example, as 598193764 + 2516928561 = 24458^2 + 50169^2 .

It is not a de Polignac number, because 3115122325 - 25 = 3115122293 is a prime.

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

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 3115122325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1270254 + ... + 1272703.

Almost surely, 23115122325 is an apocalyptic number.

3115122325 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3115122325 is a deficient number, since it is larger than the sum of its proper divisors (1378284461).

3115122325 is a wasteful number, since it uses less digits than its factorization.

3115122325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2542981 (or 2542969 counting only the distinct ones).

The product of its digits is 1800, while the sum is 25.

The square root of 3115122325 is about 55813.2809015919. The cubic root of 3115122325 is about 1460.4668434210.

Adding to 3115122325 its reverse (5232215113), we get a palindrome (8347337438).

The spelling of 3115122325 in words is "three billion, one hundred fifteen million, one hundred twenty-two thousand, three hundred twenty-five".

Divisors: 1 5 7 25 35 49 175 245 1225 2542957 12714785 17800699 63573925 89003495 124604893 445017475 623024465 3115122325