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234320253 = 378106751
BaseRepresentation
bin11011111011101…
…11000101111101
3121022220200221220
431331313011331
5434441222003
635130143553
75543455266
oct1575670575
9538820856
10234320253
111102a4302
1266581bb9
133971284b
142319796d
1515888353
hexdf7717d

234320253 has 4 divisors (see below), whose sum is σ = 312427008. Its totient is φ = 156213500.

The previous prime is 234320249. The next prime is 234320257. The reversal of 234320253 is 352023432.

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 an interprime number because it is at equal distance from previous prime (234320249) and next prime (234320257).

It is a cyclic number.

It is not a de Polignac number, because 234320253 - 22 = 234320249 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234320257) 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, 39053373 + ... + 39053378.

It is an arithmetic number, because the mean of its divisors is an integer number (78106752).

Almost surely, 2234320253 is an apocalyptic number.

It is an amenable number.

234320253 is a deficient number, since it is larger than the sum of its proper divisors (78106755).

234320253 is an equidigital number, since it uses as much as digits as its factorization.

234320253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78106754.

The product of its (nonzero) digits is 4320, while the sum is 24.

The square root of 234320253 is about 15307.5227584348. The cubic root of 234320253 is about 616.5050085465.

Adding to 234320253 its reverse (352023432), we get a palindrome (586343685).

The spelling of 234320253 in words is "two hundred thirty-four million, three hundred twenty thousand, two hundred fifty-three".

Divisors: 1 3 78106751 234320253