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231040150 = 25211420073
BaseRepresentation
bin11011100010101…
…10010010010110
3121002202001111121
431301112102112
5433121241100
634531554154
75503544305
oct1561262226
9532661447
10231040150
11109463980
126545b95a
1338b34863
142298243c
151543b51a
hexdc56496

231040150 has 24 divisors (see below), whose sum is σ = 468802584. Its totient is φ = 84014400.

The previous prime is 231040097. The next prime is 231040151. The reversal of 231040150 is 51040132.

231040150 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231040151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 209487 + ... + 210586.

It is an arithmetic number, because the mean of its divisors is an integer number (19533441).

Almost surely, 2231040150 is an apocalyptic number.

231040150 is an abundant number, since it is smaller than the sum of its proper divisors (237762434).

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

231040150 is a wasteful number, since it uses less digits than its factorization.

231040150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420096 (or 420091 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 231040150 is about 15200.0049342097. The cubic root of 231040150 is about 613.6147905456.

Adding to 231040150 its reverse (51040132), we get a palindrome (282080282).

The spelling of 231040150 in words is "two hundred thirty-one million, forty thousand, one hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 110 275 550 420073 840146 2100365 4200730 4620803 9241606 10501825 21003650 23104015 46208030 115520075 231040150