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235144141 = 897013769
BaseRepresentation
bin11100000010000…
…00001111001101
3121101110120010021
432001000033031
5440144103031
635155542141
75553456301
oct1601001715
9541416107
10235144141
11110807301
12668ba951
133994085b
142332dd01
151599c511
hexe0403cd

235144141 has 8 divisors (see below), whose sum is σ = 238188600. Its totient is φ = 232108800.

The previous prime is 235144127. The next prime is 235144193. The reversal of 235144141 is 141441532.

It can be written as a sum of positive squares in 4 ways, for example, as 76912900 + 158231241 = 8770^2 + 12579^2 .

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-235144141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235144121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60505 + ... + 64273.

It is an arithmetic number, because the mean of its divisors is an integer number (29773575).

Almost surely, 2235144141 is an apocalyptic number.

It is an amenable number.

235144141 is a deficient number, since it is larger than the sum of its proper divisors (3044459).

235144141 is an equidigital number, since it uses as much as digits as its factorization.

235144141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4559.

The product of its digits is 1920, while the sum is 25.

The square root of 235144141 is about 15334.4103571021. The cubic root of 235144141 is about 617.2267229863.

Adding to 235144141 its reverse (141441532), we get a palindrome (376585673).

The spelling of 235144141 in words is "two hundred thirty-five million, one hundred forty-four thousand, one hundred forty-one".

Divisors: 1 89 701 3769 62389 335441 2642069 235144141