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248974393 = 1013896337
BaseRepresentation
bin11101101011100…
…00110000111001
3122100111012122211
432311300300321
51002214140033
640412215121
76112150603
oct1665606071
9570435584
10248974393
111185a3168
126b46a4a1
133c773935
14250d0173
1516cd02cd
hexed70c39

248974393 has 8 divisors (see below), whose sum is σ = 252125640. Its totient is φ = 245836800.

The previous prime is 248974391. The next prime is 248974403. The reversal of 248974393 is 393479842.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 51093904 + 197880489 = 7148^2 + 14067^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 248974393 - 21 = 248974391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248974391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36121 + ... + 42457.

It is an arithmetic number, because the mean of its divisors is an integer number (31515705).

Almost surely, 2248974393 is an apocalyptic number.

It is an amenable number.

248974393 is a deficient number, since it is larger than the sum of its proper divisors (3151247).

248974393 is a wasteful number, since it uses less digits than its factorization.

248974393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6827.

The product of its digits is 1306368, while the sum is 49.

The square root of 248974393 is about 15778.9224283536. The cubic root of 248974393 is about 629.0978883361.

The spelling of 248974393 in words is "two hundred forty-eight million, nine hundred seventy-four thousand, three hundred ninety-three".

Divisors: 1 101 389 6337 39289 640037 2465093 248974393