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34121215025 = 5210253133117
BaseRepresentation
bin11111110001110010…
…000110110000110001
310021001222002022120122
4133301302012300301
51024340012340100
623401452020025
72315361354002
oct376162066061
9107058068518
1034121215025
111351a599967
126743161615
1332aa147781
1419199131a9
15d4a844985
hex7f1c86c31

34121215025 has 12 divisors (see below), whose sum is σ = 42314751132. Its totient is φ = 27294104640.

The previous prime is 34121215019. The next prime is 34121215033. The reversal of 34121215025 is 52051212143.

It can be written as a sum of positive squares in 6 ways, for example, as 8632453921 + 25488761104 = 92911^2 + 159652^2 .

It is not a de Polignac number, because 34121215025 - 230 = 33047473201 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34121214985 and 34121215003.

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, 189767 + ... + 322883.

It is an arithmetic number, because the mean of its divisors is an integer number (3526229261).

Almost surely, 234121215025 is an apocalyptic number.

It is an amenable number.

34121215025 is a deficient number, since it is larger than the sum of its proper divisors (8193536107).

34121215025 is a wasteful number, since it uses less digits than its factorization.

34121215025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143380 (or 143375 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 34121215025 its reverse (52051212143), we get a palindrome (86172427168).

The spelling of 34121215025 in words is "thirty-four billion, one hundred twenty-one million, two hundred fifteen thousand, twenty-five".

Divisors: 1 5 25 10253 51265 133117 256325 665585 3327925 1364848601 6824243005 34121215025