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239205641 = 3118674133
BaseRepresentation
bin11100100000111…
…11110100001001
3121200002220110012
432100133310021
5442214040031
635423001305
75633133353
oct1620376411
9550086405
10239205641
11113030814
1268139235
133a7333cc
1423aaa0d3
1516000b2b
hexe41fd09

239205641 has 8 divisors (see below), whose sum is σ = 247113984. Its totient is φ = 231309360.

The previous prime is 239205599. The next prime is 239205653. The reversal of 239205641 is 146502932.

It is a happy number.

239205641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-239205641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 239205598 and 239205607.

It is not an unprimeable number, because it can be changed into a prime (239205341) 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, 55811 + ... + 59943.

It is an arithmetic number, because the mean of its divisors is an integer number (30889248).

Almost surely, 2239205641 is an apocalyptic number.

It is an amenable number.

239205641 is a deficient number, since it is larger than the sum of its proper divisors (7908343).

239205641 is a wasteful number, since it uses less digits than its factorization.

239205641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6031.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 239205641 is about 15466.2743089601. The cubic root of 239205641 is about 620.7601161087.

The spelling of 239205641 in words is "two hundred thirty-nine million, two hundred five thousand, six hundred forty-one".

Divisors: 1 31 1867 4133 57877 128123 7716311 239205641