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231140300 = 22523077529
BaseRepresentation
bin11011100011011…
…10101111001100
3121002221010212212
431301232233030
5433132442200
634534045552
75504442266
oct1561565714
9532833785
10231140300
11109522146
12654a98b8
1338b6b311
14229aab36
151545b035
hexdc6ebcc

231140300 has 36 divisors (see below), whose sum is σ = 503275080. Its totient is φ = 92142720.

The previous prime is 231140281. The next prime is 231140303. The reversal of 231140300 is 3041132.

It is not an unprimeable number, because it can be changed into a prime (231140303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26936 + ... + 34464.

Almost surely, 2231140300 is an apocalyptic number.

231140300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231140300 is an abundant number, since it is smaller than the sum of its proper divisors (272134780).

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

231140300 is a wasteful number, since it uses less digits than its factorization.

231140300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7850 (or 7843 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 231140300 is about 15203.2989841021. The cubic root of 231140300 is about 613.7034398473.

Adding to 231140300 its reverse (3041132), we get a palindrome (234181432).

The spelling of 231140300 in words is "two hundred thirty-one million, one hundred forty thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 307 614 1228 1535 3070 6140 7529 7675 15058 15350 30116 30700 37645 75290 150580 188225 376450 752900 2311403 4622806 9245612 11557015 23114030 46228060 57785075 115570150 231140300