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236140131 = 3172145737
BaseRepresentation
bin11100001001100…
…11011001100011
3121110100011100210
432010303121203
5440422441011
635233145203
75565105123
oct1604633143
9543304323
10236140131
11111327637
12670bb203
1339bcbcb6
142350cc83
1515ae76a6
hexe133663

236140131 has 8 divisors (see below), whose sum is σ = 315043344. Its totient is φ = 157331840.

The previous prime is 236140111. The next prime is 236140139. The reversal of 236140131 is 131041632.

236140131 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 not a de Polignac number, because 236140131 - 213 = 236131939 is a prime.

It is a super-2 number, since 2×2361401312 = 111524322937394322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 236140098 and 236140107.

It is not an unprimeable number, because it can be changed into a prime (236140139) 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, 17706 + ... + 28031.

It is an arithmetic number, because the mean of its divisors is an integer number (39380418).

Almost surely, 2236140131 is an apocalyptic number.

236140131 is a deficient number, since it is larger than the sum of its proper divisors (78903213).

236140131 is a wasteful number, since it uses less digits than its factorization.

236140131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47461.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 236140131 is about 15366.8516944754. The cubic root of 236140131 is about 618.0969491078.

Adding to 236140131 its reverse (131041632), we get a palindrome (367181763).

The spelling of 236140131 in words is "two hundred thirty-six million, one hundred forty thousand, one hundred thirty-one".

Divisors: 1 3 1721 5163 45737 137211 78713377 236140131