Search a number
-
+
68835400 = 2352344177
BaseRepresentation
bin1000001101001…
…01100001001000
311210112012102021
410012211201020
5120110213100
610455214224
71464043204
oct406454110
9153465367
1068835400
1135946067
121b077374
131135170a
1491dbb04
15609aa1a
hex41a5848

68835400 has 24 divisors (see below), whose sum is σ = 160042770. Its totient is φ = 27534080.

The previous prime is 68835379. The next prime is 68835409. The reversal of 68835400 is 453886.

It can be written as a sum of positive squares in 3 ways, for example, as 33385284 + 35450116 = 5778^2 + 5954^2 .

It is not an unprimeable number, because it can be changed into a prime (68835409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 171889 + ... + 172288.

Almost surely, 268835400 is an apocalyptic number.

It is an amenable number.

68835400 is an abundant number, since it is smaller than the sum of its proper divisors (91207370).

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

68835400 is a wasteful number, since it uses less digits than its factorization.

68835400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344193 (or 344184 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 68835400 is about 8296.7101913951. The cubic root of 68835400 is about 409.8301894449.

The spelling of 68835400 in words is "sixty-eight million, eight hundred thirty-five thousand, four hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 344177 688354 1376708 1720885 2753416 3441770 6883540 8604425 13767080 17208850 34417700 68835400