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500297897 = 1145481627
BaseRepresentation
bin11101110100011…
…111000010101001
31021212101202200202
4131310133002221
52011034013042
6121351041545
715253314311
oct3564370251
91255352622
10500297897
11237450240
1211b6702b5
137c85a878
144a632441
152ddc6632
hex1dd1f0a9

500297897 has 4 divisors (see below), whose sum is σ = 545779536. Its totient is φ = 454816260.

The previous prime is 500297893. The next prime is 500297923. The reversal of 500297897 is 798792005.

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 not a de Polignac number, because 500297897 - 22 = 500297893 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (500297893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22740803 + ... + 22740824.

It is an arithmetic number, because the mean of its divisors is an integer number (136444884).

Almost surely, 2500297897 is an apocalyptic number.

It is an amenable number.

500297897 is a deficient number, since it is larger than the sum of its proper divisors (45481639).

500297897 is a wasteful number, since it uses less digits than its factorization.

500297897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45481638.

The product of its (nonzero) digits is 317520, while the sum is 47.

The square root of 500297897 is about 22367.3399625436. The cubic root of 500297897 is about 793.8581220270.

The spelling of 500297897 in words is "five hundred million, two hundred ninety-seven thousand, eight hundred ninety-seven".

Divisors: 1 11 45481627 500297897