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3111125 = 5324889
BaseRepresentation
bin1011110111100011010101
312212001122212
423313203111
51244024000
6150403205
735305223
oct13674325
95761585
103111125
111835486
121060505
1384c104
145adb13
15416c35
hex2f78d5

3111125 has 8 divisors (see below), whose sum is σ = 3882840. Its totient is φ = 2488800.

The previous prime is 3111107. The next prime is 3111131. The reversal of 3111125 is 5211113.

It can be written as a sum of positive squares in 4 ways, for example, as 917764 + 2193361 = 958^2 + 1481^2 .

It is not a de Polignac number, because 3111125 - 210 = 3110101 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12320 + ... + 12569.

It is an arithmetic number, because the mean of its divisors is an integer number (485355).

Almost surely, 23111125 is an apocalyptic number.

It is an amenable number.

3111125 is a deficient number, since it is larger than the sum of its proper divisors (771715).

3111125 is an equidigital number, since it uses as much as digits as its factorization.

3111125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24904 (or 24894 counting only the distinct ones).

The product of its digits is 30, while the sum is 14.

The square root of 3111125 is about 1763.8381445019. The cubic root of 3111125 is about 145.9841885673.

Adding to 3111125 its reverse (5211113), we get a palindrome (8322238).

The spelling of 3111125 in words is "three million, one hundred eleven thousand, one hundred twenty-five".

Divisors: 1 5 25 125 24889 124445 622225 3111125