Search a number
-
+
68760101280 = 25351317648191
BaseRepresentation
bin100000000001001101…
…0111110000110100000
320120111000021001120210
41000002122332012200
52111310041220110
651330555334120
74652640134403
oct1000232760640
9216430231523
1068760101280
1127185314892
12113ab751340
13663a5c3780
14348409bd3a
151bc6843520
hex10026be1a0

68760101280 has 192 divisors, whose sum is σ = 246976708608. Its totient is φ = 15929917440.

The previous prime is 68760101261. The next prime is 68760101321. The reversal of 68760101280 is 8210106786.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 218016 + ... + 430175.

It is an arithmetic number, because the mean of its divisors is an integer number (1286337024).

Almost surely, 268760101280 is an apocalyptic number.

68760101280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68760101280 is an abundant number, since it is smaller than the sum of its proper divisors (178216607328).

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

68760101280 is a wasteful number, since it uses less digits than its factorization.

68760101280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648239 (or 648231 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 39.

The spelling of 68760101280 in words is "sixty-eight billion, seven hundred sixty million, one hundred one thousand, two hundred eighty".