Search a number
-
+
68831850 = 2352458879
BaseRepresentation
bin1000001101001…
…00101001101010
311210112000112210
410012210221222
5120110104400
610455145550
71464026643
oct406445152
9153460483
1068831850
113594342a
121b0752b6
131134cc09
1491da6ca
156099950
hex41a4a6a

68831850 has 24 divisors (see below), whose sum is σ = 170703360. Its totient is φ = 18355120.

The previous prime is 68831843. The next prime is 68831857. The reversal of 68831850 is 5813886.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (68831843) and next prime (68831857).

It is a junction number, because it is equal to n+sod(n) for n = 68831799 and 68831808.

It is not an unprimeable number, because it can be changed into a prime (68831857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 229290 + ... + 229589.

It is an arithmetic number, because the mean of its divisors is an integer number (7112640).

Almost surely, 268831850 is an apocalyptic number.

68831850 is an abundant number, since it is smaller than the sum of its proper divisors (101871510).

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

68831850 is a wasteful number, since it uses less digits than its factorization.

68831850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458894 (or 458889 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 68831850 is about 8296.4962484172. The cubic root of 68831850 is about 409.8231440285.

The spelling of 68831850 in words is "sixty-eight million, eight hundred thirty-one thousand, eight hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 150 458879 917758 1376637 2294395 2753274 4588790 6883185 11471975 13766370 22943950 34415925 68831850