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238383321 = 3117223737
BaseRepresentation
bin11100011010101…
…11000011011001
3121121120010102220
432031113003121
5442011231241
635353214253
75623140051
oct1615270331
9547503386
10238383321
11112619a10
1267a01389
133a506027
1423934561
1515ddc166
hexe3570d9

238383321 has 8 divisors (see below), whose sum is σ = 346739424. Its totient is φ = 144474720.

The previous prime is 238383317. The next prime is 238383323. The reversal of 238383321 is 123383832.

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

It is not a de Polignac number, because 238383321 - 22 = 238383317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 7223737 = 238383321 / (2 + 3 + 8 + 3 + 8 + 3 + 3 + 2 + 1).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (238383323) 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, 3611836 + ... + 3611901.

It is an arithmetic number, because the mean of its divisors is an integer number (43342428).

Almost surely, 2238383321 is an apocalyptic number.

It is an amenable number.

238383321 is a deficient number, since it is larger than the sum of its proper divisors (108356103).

238383321 is a wasteful number, since it uses less digits than its factorization.

238383321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7223751.

The product of its digits is 20736, while the sum is 33.

The square root of 238383321 is about 15439.6671272408. The cubic root of 238383321 is about 620.0479680196.

The spelling of 238383321 in words is "two hundred thirty-eight million, three hundred eighty-three thousand, three hundred twenty-one".

Divisors: 1 3 11 33 7223737 21671211 79461107 238383321