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238992994 = 2131912187
BaseRepresentation
bin11100011111010…
…11111001100010
3121122201002202101
432033223321202
5442140233434
635414241014
75631256402
oct1617537142
9548632671
10238992994
111129a5a79
126805616a
133a68a696
1423a52802
1515eacb14
hexe3ebe62

238992994 has 8 divisors (see below), whose sum is σ = 361226448. Its totient is φ = 118584180.

The previous prime is 238992989. The next prime is 238992997. The reversal of 238992994 is 499299832.

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

It is not an unprimeable number, because it can be changed into a prime (238992997) 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, 455832 + ... + 456355.

It is an arithmetic number, because the mean of its divisors is an integer number (45153306).

Almost surely, 2238992994 is an apocalyptic number.

238992994 is a deficient number, since it is larger than the sum of its proper divisors (122233454).

238992994 is a wasteful number, since it uses less digits than its factorization.

238992994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912320.

The product of its digits is 2519424, while the sum is 55.

The square root of 238992994 is about 15459.3982418463. The cubic root of 238992994 is about 620.5761155548.

The spelling of 238992994 in words is "two hundred thirty-eight million, nine hundred ninety-two thousand, nine hundred ninety-four".

Divisors: 1 2 131 262 912187 1824374 119496497 238992994