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520101025 = 5242714871
BaseRepresentation
bin11111000000000…
…001110010100001
31100020122212110221
4133000001302201
52031121213100
6123335323041
715613533343
oct3700016241
91306585427
10520101025
11247646664
12126220481
13839a24b2
144d109293
15309d901a
hex1f001ca1

520101025 has 12 divisors (see below), whose sum is σ = 645208704. Its totient is φ = 415898000.

The previous prime is 520101019. The next prime is 520101059.

520101025 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 520101025 - 219 = 519576737 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104340 + ... + 109210.

It is an arithmetic number, because the mean of its divisors is an integer number (53767392).

Almost surely, 2520101025 is an apocalyptic number.

It is an amenable number.

520101025 is a deficient number, since it is larger than the sum of its proper divisors (125107679).

520101025 is a wasteful number, since it uses less digits than its factorization.

520101025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9152 (or 9147 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 520101025 is about 22805.7235140655. The cubic root of 520101025 is about 804.1972244765.

It can be divided in two parts, 52010 and 1025, that added together give a palindrome (53035).

The spelling of 520101025 in words is "five hundred twenty million, one hundred one thousand, twenty-five".

Divisors: 1 5 25 4271 4871 21355 24355 106775 121775 20804041 104020205 520101025