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234315897 = 378105299
BaseRepresentation
bin11011111011101…
…10000001111001
3121022220110222120
431331312001321
5434441102042
635130111453
75543436504
oct1575660171
9538813876
10234315897
111102a1002
126657b589
133971087a
142319613b
1515886dec
hexdf76079

234315897 has 4 divisors (see below), whose sum is σ = 312421200. Its totient is φ = 156210596.

The previous prime is 234315877. The next prime is 234315919. The reversal of 234315897 is 798513432.

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 234315897 - 212 = 234311801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (234315827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39052647 + ... + 39052652.

It is an arithmetic number, because the mean of its divisors is an integer number (78105300).

Almost surely, 2234315897 is an apocalyptic number.

It is an amenable number.

234315897 is a deficient number, since it is larger than the sum of its proper divisors (78105303).

234315897 is an equidigital number, since it uses as much as digits as its factorization.

234315897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78105302.

The product of its digits is 181440, while the sum is 42.

The square root of 234315897 is about 15307.3804747906. The cubic root of 234315897 is about 616.5011882586.

The spelling of 234315897 in words is "two hundred thirty-four million, three hundred fifteen thousand, eight hundred ninety-seven".

Divisors: 1 3 78105299 234315897