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248556379 = 534689743
BaseRepresentation
bin11101101000010…
…10101101011011
3122022200222020211
432310022231123
51002112301004
640355231551
76105460111
oct1664125533
9568628224
10248556379
111183380a5
126b2a85b7
133c6585a6
1425021ab1
1516c4b504
hexed0ab5b

248556379 has 4 divisors (see below), whose sum is σ = 253246176. Its totient is φ = 243866584.

The previous prime is 248556367. The next prime is 248556403. The reversal of 248556379 is 973655842.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 973655842 = 2486827921.

It is a cyclic number.

It is not a de Polignac number, because 248556379 - 27 = 248556251 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248556349) 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, 2344819 + ... + 2344924.

It is an arithmetic number, because the mean of its divisors is an integer number (63311544).

Almost surely, 2248556379 is an apocalyptic number.

248556379 is a deficient number, since it is larger than the sum of its proper divisors (4689797).

248556379 is an equidigital number, since it uses as much as digits as its factorization.

248556379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4689796.

The product of its digits is 1814400, while the sum is 49.

The square root of 248556379 is about 15765.6709023118. The cubic root of 248556379 is about 628.7456177933.

The spelling of 248556379 in words is "two hundred forty-eight million, five hundred fifty-six thousand, three hundred seventy-nine".

Divisors: 1 53 4689743 248556379