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3111135425 = 52429728961
BaseRepresentation
bin1011100101110000…
…0010100011000001
322000211011001110222
42321130002203001
522332422313200
61232414232425
7140045133446
oct27134024301
98024131428
103111135425
111357178102
12729ab5715
133a7726648
142172959cd
151331e7d85
hexb97028c1

3111135425 has 12 divisors (see below), whose sum is σ = 3858838956. Its totient is φ = 2488243200.

The previous prime is 3111135409. The next prime is 3111135451. The reversal of 3111135425 is 5245311113.

It can be written as a sum of positive squares in 6 ways, for example, as 70274689 + 3040860736 = 8383^2 + 55144^2 .

It is not a de Polignac number, because 3111135425 - 24 = 3111135409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3111135394 and 3111135403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92945 + ... + 121905.

It is an arithmetic number, because the mean of its divisors is an integer number (321569913).

Almost surely, 23111135425 is an apocalyptic number.

It is an amenable number.

3111135425 is a deficient number, since it is larger than the sum of its proper divisors (747703531).

3111135425 is a wasteful number, since it uses less digits than its factorization.

3111135425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33268 (or 33263 counting only the distinct ones).

The product of its digits is 1800, while the sum is 26.

The square root of 3111135425 is about 55777.5530567629. The cubic root of 3111135425 is about 1459.8435162554.

Adding to 3111135425 its reverse (5245311113), we get a palindrome (8356446538).

The spelling of 3111135425 in words is "three billion, one hundred eleven million, one hundred thirty-five thousand, four hundred twenty-five".

Divisors: 1 5 25 4297 21485 28961 107425 144805 724025 124445417 622227085 3111135425