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235012728 = 23347920443
BaseRepresentation
bin11100000001000…
…00001001111000
3121101012212212010
432000200021320
5440130401403
635153045520
75552401206
oct1600401170
9541185763
10235012728
111107275a5
12668568a0
13398c5ab2
14232d8076
1515973603
hexe020278

235012728 has 32 divisors (see below), whose sum is σ = 588787200. Its totient is φ = 78170208.

The previous prime is 235012727. The next prime is 235012747. The reversal of 235012728 is 827210532.

It is a junction number, because it is equal to n+sod(n) for n = 235012695 and 235012704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235012727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1275 + ... + 21717.

It is an arithmetic number, because the mean of its divisors is an integer number (18399600).

Almost surely, 2235012728 is an apocalyptic number.

It is an amenable number.

235012728 is an abundant number, since it is smaller than the sum of its proper divisors (353774472).

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

235012728 is a wasteful number, since it uses less digits than its factorization.

235012728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20931 (or 20927 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 235012728 is about 15330.1248527205. The cubic root of 235012728 is about 617.1117201491. Note that the first 3 decimals are identical.

The spelling of 235012728 in words is "two hundred thirty-five million, twelve thousand, seven hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 24 479 958 1437 1916 2874 3832 5748 11496 20443 40886 61329 81772 122658 163544 245316 490632 9792197 19584394 29376591 39168788 58753182 78337576 117506364 235012728