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68506704 = 2432731973
BaseRepresentation
bin1000001010101…
…01010001010000
311202220111112100
410011111101100
5120014203304
610444200400
71461204000
oct405252120
9152814470
1068506704
1135741112
121ab39100
1311267c16
149154000
156033439
hex4155450

68506704 has 240 divisors, whose sum is σ = 238576000. Its totient is φ = 18289152.

The previous prime is 68506699. The next prime is 68506733. The reversal of 68506704 is 40760586.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 938412 + ... + 938484.

Almost surely, 268506704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68506704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119288000).

68506704 is an abundant number, since it is smaller than the sum of its proper divisors (170069296).

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

68506704 is a wasteful number, since it uses less digits than its factorization.

68506704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127 (or 104 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 68506704 is about 8276.8776721660. The cubic root of 68506704 is about 409.1768214985.

The spelling of 68506704 in words is "sixty-eight million, five hundred six thousand, seven hundred four".