Search a number
-
+
68239500 = 2235376797
BaseRepresentation
bin1000001000101…
…00000010001100
311202101220222220
410010110002030
5114432131000
610434335340
71456011660
oct404240214
9152356886
1068239500
113557938a
121aa2a550
13111a3404
1490c48a0
155ece1a0
hex411408c

68239500 has 192 divisors, whose sum is σ = 232866816. Its totient is φ = 15206400.

The previous prime is 68239499. The next prime is 68239511. The reversal of 68239500 is 593286.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 703452 + ... + 703548.

It is an arithmetic number, because the mean of its divisors is an integer number (1212848).

Almost surely, 268239500 is an apocalyptic number.

68239500 is a gapful number since it is divisible by the number (60) 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 68239500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116433408).

68239500 is an abundant number, since it is smaller than the sum of its proper divisors (164627316).

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

68239500 is a wasteful number, since it uses less digits than its factorization.

68239500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193 (or 181 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 68239500 is about 8260.7203075761. The cubic root of 68239500 is about 408.6441430187.

The spelling of 68239500 in words is "sixty-eight million, two hundred thirty-nine thousand, five hundred".