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231240300 = 22352770801
BaseRepresentation
bin11011100100001…
…11001001101100
3121010010020001120
431302013021230
5433144142200
634540140540
75505336654
oct1562071154
9533106046
10231240300
11109590295
1265537750
1338ba49a5
14229d5364
151547a9a0
hexdc8726c

231240300 has 36 divisors (see below), whose sum is σ = 669056136. Its totient is φ = 61664000.

The previous prime is 231240281. The next prime is 231240311. The reversal of 231240300 is 3042132.

231240300 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 231240300.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 385101 + ... + 385700.

Almost surely, 2231240300 is an apocalyptic number.

231240300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231240300 is an abundant number, since it is smaller than the sum of its proper divisors (437815836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231240300 is a wasteful number, since it uses less digits than its factorization.

231240300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770818 (or 770811 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 231240300 is about 15206.5873883656. The cubic root of 231240300 is about 613.7919308284.

Adding to 231240300 its reverse (3042132), we get a palindrome (234282432).

It can be divided in two parts, 231240 and 300, that added together give a triangular number (231540 = T680).

The spelling of 231240300 in words is "two hundred thirty-one million, two hundred forty thousand, three hundred".

Divisors: 1 2 3 4 5 6 10 12 15 20 25 30 50 60 75 100 150 300 770801 1541602 2312403 3083204 3854005 4624806 7708010 9249612 11562015 15416020 19270025 23124030 38540050 46248060 57810075 77080100 115620150 231240300