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507262081 = 796421039
BaseRepresentation
bin11110001111000…
…011010010000001
31022100111120202111
4132033003102001
52014324341311
6122200215321
715366441124
oct3617032201
91270446674
10507262081
11240377567
12121a6a541
13811286a1
144b5263bb
152e7eed21
hex1e3c3481

507262081 has 4 divisors (see below), whose sum is σ = 513683200. Its totient is φ = 500840964.

The previous prime is 507262027. The next prime is 507262087. The reversal of 507262081 is 180262705.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-507262081 is a prime.

It is a super-2 number, since 2×5072620812 = 514629637640901122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (507262087) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3210441 + ... + 3210598.

It is an arithmetic number, because the mean of its divisors is an integer number (128420800).

Almost surely, 2507262081 is an apocalyptic number.

It is an amenable number.

507262081 is a deficient number, since it is larger than the sum of its proper divisors (6421119).

507262081 is an equidigital number, since it uses as much as digits as its factorization.

507262081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6421118.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 507262081 is about 22522.4794594201. The cubic root of 507262081 is about 797.5246827592.

The spelling of 507262081 in words is "five hundred seven million, two hundred sixty-two thousand, eighty-one".

Divisors: 1 79 6421039 507262081