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248958427 = 318030917
BaseRepresentation
bin11101101011011…
…00110111011011
3122100110101202111
432311230313123
51002213132202
640412013151
76112053214
oct1665546733
9570411674
10248958427
11118592173
126b4611b7
133c7695a3
14250c840b
1516cca6d7
hexed6cddb

248958427 has 4 divisors (see below), whose sum is σ = 256989376. Its totient is φ = 240927480.

The previous prime is 248958419. The next prime is 248958439. The reversal of 248958427 is 724859842.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 248958427 - 23 = 248958419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248958407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4015428 + ... + 4015489.

It is an arithmetic number, because the mean of its divisors is an integer number (64247344).

Almost surely, 2248958427 is an apocalyptic number.

248958427 is a deficient number, since it is larger than the sum of its proper divisors (8030949).

248958427 is an equidigital number, since it uses as much as digits as its factorization.

248958427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8030948.

The product of its digits is 1290240, while the sum is 49.

The square root of 248958427 is about 15778.4164921579. The cubic root of 248958427 is about 629.0844406458.

The spelling of 248958427 in words is "two hundred forty-eight million, nine hundred fifty-eight thousand, four hundred twenty-seven".

Divisors: 1 31 8030917 248958427