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538995793 = 776999399
BaseRepresentation
bin100000001000000…
…110110001010001
31101120012211020011
4200020012301101
52100440331133
6125252314521
716233250210
oct4010066121
91346184204
10538995793
11257281576
12130612a41
138788982b
1451827077
15324bc6cd
hex20206c51

538995793 has 4 divisors (see below), whose sum is σ = 615995200. Its totient is φ = 461996388.

The previous prime is 538995773. The next prime is 538995803. The reversal of 538995793 is 397599835.

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 not a de Polignac number, because 538995793 - 217 = 538864721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (538995733) 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, 38499693 + ... + 38499706.

It is an arithmetic number, because the mean of its divisors is an integer number (153998800).

Almost surely, 2538995793 is an apocalyptic number.

It is an amenable number.

538995793 is a deficient number, since it is larger than the sum of its proper divisors (76999407).

538995793 is an equidigital number, since it uses as much as digits as its factorization.

538995793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76999406.

The product of its digits is 9185400, while the sum is 58.

The square root of 538995793 is about 23216.2829281520. The cubic root of 538995793 is about 813.8201870871.

The spelling of 538995793 in words is "five hundred thirty-eight million, nine hundred ninety-five thousand, seven hundred ninety-three".

Divisors: 1 7 76999399 538995793