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34120025 = 521578693
BaseRepresentation
bin1000001000101…
…0000101011001
32101012110212122
42002022011121
532213320100
63215151025
7563005202
oct202120531
971173778
1034120025
1118294975
12b515475
1370b8384
1447625a9
152ede985
hex208a159

34120025 has 12 divisors (see below), whose sum is σ = 42583212. Its totient is φ = 27119040.

The previous prime is 34120013. The next prime is 34120033. The reversal of 34120025 is 52002143.

It can be written as a sum of positive squares in 6 ways, for example, as 8637721 + 25482304 = 2939^2 + 5048^2 .

It is not a de Polignac number, because 34120025 - 26 = 34119961 is a prime.

It is a super-2 number, since 2×341200252 = 2328352212001250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34119985 and 34120012.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 422 + ... + 8271.

It is an arithmetic number, because the mean of its divisors is an integer number (3548601).

Almost surely, 234120025 is an apocalyptic number.

It is an amenable number.

34120025 is a deficient number, since it is larger than the sum of its proper divisors (8463187).

34120025 is a wasteful number, since it uses less digits than its factorization.

34120025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8860 (or 8855 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 34120025 is about 5841.2348865629. The cubic root of 34120025 is about 324.3419426318.

Adding to 34120025 its reverse (52002143), we get a palindrome (86122168).

The spelling of 34120025 in words is "thirty-four million, one hundred twenty thousand, twenty-five".

Divisors: 1 5 25 157 785 3925 8693 43465 217325 1364801 6824005 34120025