Search a number
-
+
68734082148 = 22341139703419
BaseRepresentation
bin100000000000011011…
…1101101110001100100
320120102012022011001020
41000000313231301210
52111231411112043
651324225531140
74652203026024
oct1000067556144
9216365264036
1068734082148
1127171663276
12113a2aa3ab0
1366350b3734
143480847a84
151bc4403e83
hex1000dedc64

68734082148 has 24 divisors (see below), whose sum is σ = 164291221920. Its totient is φ = 22352546880.

The previous prime is 68734082143. The next prime is 68734082159. The reversal of 68734082148 is 84128043786.

It is a self number, because there is not a number n which added to its sum of digits gives 68734082148.

It is not an unprimeable number, because it can be changed into a prime (68734082143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69851218 + ... + 69852201.

It is an arithmetic number, because the mean of its divisors is an integer number (6845467580).

Almost surely, 268734082148 is an apocalyptic number.

It is an amenable number.

68734082148 is an abundant number, since it is smaller than the sum of its proper divisors (95557139772).

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

68734082148 is a wasteful number, since it uses less digits than its factorization.

68734082148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139703467 (or 139703465 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 51.

The spelling of 68734082148 in words is "sixty-eight billion, seven hundred thirty-four million, eighty-two thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 12 41 82 123 164 246 492 139703419 279406838 419110257 558813676 838220514 1676441028 5727840179 11455680358 17183520537 22911360716 34367041074 68734082148