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234755257 = 1121341387
BaseRepresentation
bin11011111111000…
…01010010111001
3121100201210200011
431333201102321
5440044132012
635143341521
75550246442
oct1577412271
9540653604
10234755257
11110571110
12667518a1
1339835849
142326c2c9
15159221a7
hexdfe14b9

234755257 has 4 divisors (see below), whose sum is σ = 256096656. Its totient is φ = 213413860.

The previous prime is 234755249. The next prime is 234755303. The reversal of 234755257 is 752557432.

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 234755257 - 23 = 234755249 is a prime.

It is a super-2 number, since 2×2347552572 = 110220061378272098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (234755557) 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, 10670683 + ... + 10670704.

It is an arithmetic number, because the mean of its divisors is an integer number (64024164).

Almost surely, 2234755257 is an apocalyptic number.

It is an amenable number.

234755257 is a deficient number, since it is larger than the sum of its proper divisors (21341399).

234755257 is a wasteful number, since it uses less digits than its factorization.

234755257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21341398.

The product of its digits is 294000, while the sum is 40.

The square root of 234755257 is about 15321.7250007954. The cubic root of 234755257 is about 616.8862764290.

The spelling of 234755257 in words is "two hundred thirty-four million, seven hundred fifty-five thousand, two hundred fifty-seven".

Divisors: 1 11 21341387 234755257