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239494049 = 457524057
BaseRepresentation
bin11100100011001…
…10001110100001
3121200122120001222
432101212032201
5442302302144
635433104425
75635444244
oct1621461641
9550576058
10239494049
11113208473
1268258115
133a804772
1423b4325b
151605b2ee
hexe4663a1

239494049 has 4 divisors (see below), whose sum is σ = 240018564. Its totient is φ = 238969536.

The previous prime is 239494033. The next prime is 239494051. The reversal of 239494049 is 940494932.

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

It can be written as a sum of positive squares in 2 ways, for example, as 173185600 + 66308449 = 13160^2 + 8143^2 .

It is a cyclic number.

It is not a de Polignac number, because 239494049 - 24 = 239494033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (239499049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261572 + ... + 262485.

It is an arithmetic number, because the mean of its divisors is an integer number (60004641).

Almost surely, 2239494049 is an apocalyptic number.

It is an amenable number.

239494049 is a deficient number, since it is larger than the sum of its proper divisors (524515).

239494049 is an equidigital number, since it uses as much as digits as its factorization.

239494049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524514.

The product of its (nonzero) digits is 279936, while the sum is 44.

The square root of 239494049 is about 15475.5952712650. The cubic root of 239494049 is about 621.0094974618.

The spelling of 239494049 in words is "two hundred thirty-nine million, four hundred ninety-four thousand, forty-nine".

Divisors: 1 457 524057 239494049