Search a number
-
+
238297969 = 7132618659
BaseRepresentation
bin11100011010000…
…10001101110001
3121121101210100201
432031002031301
5442001013334
635351315201
75622333160
oct1615021561
9547353321
10238297969
11112570878
126797bb01
133a4a6220
14239113d7
1515dc1c14
hexe342371

238297969 has 8 divisors (see below), whose sum is σ = 293289920. Its totient is φ = 188543376.

The previous prime is 238297967. The next prime is 238297979. The reversal of 238297969 is 969792832.

It is a happy number.

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

It is not a de Polignac number, because 238297969 - 21 = 238297967 is a prime.

It is a super-2 number, since 2×2382979692 = 113571844059049922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (238297967) 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 7 ways as a sum of consecutive naturals, for example, 1309239 + ... + 1309420.

It is an arithmetic number, because the mean of its divisors is an integer number (36661240).

Almost surely, 2238297969 is an apocalyptic number.

238297969 is the 8913-rd hex number.

It is an amenable number.

238297969 is a deficient number, since it is larger than the sum of its proper divisors (54991951).

238297969 is a wasteful number, since it uses less digits than its factorization.

238297969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2618679.

The product of its digits is 2939328, while the sum is 55.

The square root of 238297969 is about 15436.9028305551. The cubic root of 238297969 is about 619.9739574562.

The spelling of 238297969 in words is "two hundred thirty-eight million, two hundred ninety-seven thousand, nine hundred sixty-nine".

Divisors: 1 7 13 91 2618659 18330613 34042567 238297969