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231073248 = 253717113179
BaseRepresentation
bin11011100010111…
…10010111100000
3121002210201220110
431301132113200
5433123320443
634532411320
75504042640
oct1561362740
9532721813
10231073248
1110948682a
1265476b40
1338b46943
1422990520
1515446233
hexdc5e5e0

231073248 has 192 divisors, whose sum is σ = 744629760. Its totient is φ = 61243392.

The previous prime is 231073237. The next prime is 231073259. The reversal of 231073248 is 842370132.

231073248 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (231073237) and next prime (231073259).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1290823 + ... + 1291001.

It is an arithmetic number, because the mean of its divisors is an integer number (3878280).

Almost surely, 2231073248 is an apocalyptic number.

231073248 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231073248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (372314880).

231073248 is an abundant number, since it is smaller than the sum of its proper divisors (513556512).

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

231073248 is a wasteful number, since it uses less digits than its factorization.

231073248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 231073248 is about 15201.0936448665. The cubic root of 231073248 is about 613.6440905793.

The spelling of 231073248 in words is "two hundred thirty-one million, seventy-three thousand, two hundred forty-eight".