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712097993 = 3122970903
BaseRepresentation
bin101010011100011…
…100000011001001
31211121221022210202
4222130130003021
52424244113433
6154354421545
723434506305
oct5234340311
91747838722
10712097993
11335a62842
1217a5918b5
13b46b6b79
146a806d05
15427b1ee8
hex2a71c0c9

712097993 has 4 divisors (see below), whose sum is σ = 735068928. Its totient is φ = 689127060.

The previous prime is 712097977. The next prime is 712098001. The reversal of 712097993 is 399790217.

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, and also an emirpimes, since its reverse is a distinct semiprime: 399790217 = 3710805141.

It is a cyclic number.

It is not a de Polignac number, because 712097993 - 24 = 712097977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (712097933) 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, 11485421 + ... + 11485482.

It is an arithmetic number, because the mean of its divisors is an integer number (183767232).

Almost surely, 2712097993 is an apocalyptic number.

It is an amenable number.

712097993 is a deficient number, since it is larger than the sum of its proper divisors (22970935).

712097993 is a wasteful number, since it uses less digits than its factorization.

712097993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22970934.

The product of its (nonzero) digits is 214326, while the sum is 47.

The square root of 712097993 is about 26685.1642865469. The cubic root of 712097993 is about 892.9899829461.

The spelling of 712097993 in words is "seven hundred twelve million, ninety-seven thousand, nine hundred ninety-three".

Divisors: 1 31 22970903 712097993