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3031012125 = 32534165713
BaseRepresentation
bin1011010010101001…
…1001001100011101
321211020101100222100
42310222121030131
522201414342000
61220433035313
7135053115021
oct26452311435
97736340870
103031012125
111315a222a9
127070b5b39
13393c520cb
1420a79a381
1512b16ca00
hexb4a9931d

3031012125 has 48 divisors (see below), whose sum is σ = 5597255664. Its totient is φ = 1577088000.

The previous prime is 3031012123. The next prime is 3031012181. The reversal of 3031012125 is 5212101303.

3031012125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 1196260569 + 1834751556 = 34587^2 + 42834^2 .

It is not a de Polignac number, because 3031012125 - 21 = 3031012123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3031012098 and 3031012107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3031012123) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13269 + ... + 78981.

It is an arithmetic number, because the mean of its divisors is an integer number (116609493).

Almost surely, 23031012125 is an apocalyptic number.

It is an amenable number.

3031012125 is a deficient number, since it is larger than the sum of its proper divisors (2566243539).

3031012125 is a wasteful number, since it uses less digits than its factorization.

3031012125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65775 (or 65762 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 3031012125 is about 55054.6285520119. The cubic root of 3031012125 is about 1447.2022350095.

Adding to 3031012125 its reverse (5212101303), we get a palindrome (8243113428).

The spelling of 3031012125 in words is "three billion, thirty-one million, twelve thousand, one hundred twenty-five".

Divisors: 1 3 5 9 15 25 41 45 75 123 125 205 225 369 375 615 1025 1125 1845 3075 5125 9225 15375 46125 65713 197139 328565 591417 985695 1642825 2694233 2957085 4928475 8082699 8214125 13471165 14785425 24248097 24642375 40413495 67355825 73927125 121240485 202067475 336779125 606202425 1010337375 3031012125