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510520425 = 3526806939
BaseRepresentation
bin11110011011011…
…110110001101001
31022120122010100220
4132123132301221
52021143123200
6122354120253
715436231512
oct3633366151
91276563326
10510520425
112421a2608
12122b80089
13819c97bc
144bb33a09
152ec454a0
hex1e6dec69

510520425 has 12 divisors (see below), whose sum is σ = 844060560. Its totient is φ = 272277520.

The previous prime is 510520403. The next prime is 510520429. The reversal of 510520425 is 524025015.

It is a happy number.

It is not a de Polignac number, because 510520425 - 211 = 510518377 is a prime.

It is a super-2 number, since 2×5105204252 = 521262208684361250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 510520395 and 510520404.

It is not an unprimeable number, because it can be changed into a prime (510520429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3403395 + ... + 3403544.

It is an arithmetic number, because the mean of its divisors is an integer number (70338380).

Almost surely, 2510520425 is an apocalyptic number.

It is an amenable number.

510520425 is a deficient number, since it is larger than the sum of its proper divisors (333540135).

510520425 is a wasteful number, since it uses less digits than its factorization.

510520425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6806952 (or 6806947 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 510520425 is about 22594.6990464578. The cubic root of 510520425 is about 799.2286445233.

The spelling of 510520425 in words is "five hundred ten million, five hundred twenty thousand, four hundred twenty-five".

Divisors: 1 3 5 15 25 75 6806939 20420817 34034695 102104085 170173475 510520425