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68656200 = 233521753127
BaseRepresentation
bin1000001011110…
…01110001001000
311210012002121020
410011321301020
5120033444300
610451312440
71462365564
oct405716110
9153162536
1068656200
1135833468
121abab720
13112bac92
1491926a4
1560628a0
hex4179c48

68656200 has 192 divisors, whose sum is σ = 231413760. Its totient is φ = 16773120.

The previous prime is 68656199. The next prime is 68656207. The reversal of 68656200 is 265686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68656207) 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 47 ways as a sum of consecutive naturals, for example, 540537 + ... + 540663.

It is an arithmetic number, because the mean of its divisors is an integer number (1205280).

Almost surely, 268656200 is an apocalyptic number.

68656200 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 68656200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115706880).

68656200 is an abundant number, since it is smaller than the sum of its proper divisors (162757560).

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

68656200 is a wasteful number, since it uses less digits than its factorization.

68656200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 68656200 is about 8285.9036924164. The cubic root of 68656200 is about 409.4742418138.

The spelling of 68656200 in words is "sixty-eight million, six hundred fifty-six thousand, two hundred".