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238733401 = 154512
BaseRepresentation
bin11100011101011…
…00100001011001
3121122012220122211
432032230201121
5442103432101
635404515121
75626125514
oct1616544131
9548186584
10238733401
11112838a35
1267b4baa1
133a5c948a
14239c5d7b
1515e5ac51
hexe3ac859

238733401 has 3 divisors (see below), whose sum is σ = 238748853. Its totient is φ = 238717950.

The previous prime is 238733317. The next prime is 238733413. The reversal of 238733401 is 104337832.

The square root of 238733401 is 15451.

It is a perfect power (a square), and thus also a powerful number.

238733401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 238733401 - 27 = 238733273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238733471) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 7726 + ... + 23176.

It is an arithmetic number, because the mean of its divisors is an integer number (79582951).

Almost surely, 2238733401 is an apocalyptic number.

238733401 is the 15451-st square number.

238733401 is the 7726-th centered octagonal number.

It is an amenable number.

238733401 is a deficient number, since it is larger than the sum of its proper divisors (15452).

238733401 is an frugal number, since it uses more digits than its factorization.

238733401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30902 (or 15451 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The cubic root of 238733401 is about 620.3513452582.

The spelling of 238733401 in words is "two hundred thirty-eight million, seven hundred thirty-three thousand, four hundred one".

Divisors: 1 15451 238733401