Search a number
-
+
238992492 = 22319916041
BaseRepresentation
bin11100011111010…
…11110001101100
3121122201002001210
432033223301230
5442140224432
635414234420
75631255054
oct1617536154
9548632053
10238992492
111129a5662
1268055a10
133a68a39b
1423a52564
1515eac8cc
hexe3ebc6c

238992492 has 12 divisors (see below), whose sum is σ = 557649176. Its totient is φ = 79664160.

The previous prime is 238992491. The next prime is 238992493. The reversal of 238992492 is 294299832.

238992492 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (238992491) and next prime (238992493).

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×2389924922 = 114234822464740128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (238992491) 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, 9958009 + ... + 9958032.

Almost surely, 2238992492 is an apocalyptic number.

It is an amenable number.

238992492 is an abundant number, since it is smaller than the sum of its proper divisors (318656684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

238992492 is a wasteful number, since it uses less digits than its factorization.

238992492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19916048 (or 19916046 counting only the distinct ones).

The product of its digits is 559872, while the sum is 48.

The square root of 238992492 is about 15459.3820057595. The cubic root of 238992492 is about 620.5756810519.

The spelling of 238992492 in words is "two hundred thirty-eight million, nine hundred ninety-two thousand, four hundred ninety-two".

Divisors: 1 2 3 4 6 12 19916041 39832082 59748123 79664164 119496246 238992492