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238671601 = 7222072
BaseRepresentation
bin11100011100111…
…01011011110001
3121122002202212221
432032131123301
5442044442401
635403321041
75625450400
oct1616353361
9548082787
10238671601
111127a6563
1267b20181
133a5a72cc
14239ab637
1515e477a1
hexe39d6f1

238671601 has 9 divisors (see below), whose sum is σ = 277764249. Its totient is φ = 204482964.

The previous prime is 238671581. The next prime is 238671613. The reversal of 238671601 is 106176832.

The square root of 238671601 is 15449.

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

It is not a de Polignac number, because 238671601 - 27 = 238671473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (238671001) 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 8 ways as a sum of consecutive naturals, for example, 107040 + ... + 109246.

Almost surely, 2238671601 is an apocalyptic number.

238671601 is the 15449-th square number.

238671601 is the 7725-th centered octagonal number.

It is an amenable number.

238671601 is a deficient number, since it is larger than the sum of its proper divisors (39092648).

238671601 is an frugal number, since it uses more digits than its factorization.

238671601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4428 (or 2214 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The cubic root of 238671601 is about 620.2978113140.

The spelling of 238671601 in words is "two hundred thirty-eight million, six hundred seventy-one thousand, six hundred one".

Divisors: 1 7 49 2207 15449 108143 4870849 34095943 238671601