Search a number
-
+
68840701744 = 2425183920431
BaseRepresentation
bin100000000011100111…
…0011011111100110000
320120200121220222122011
41000013032123330300
52111441204423434
651342555052304
74654636211233
oct1000716337460
9216617828564
1068840701744
1127216866141
1211412741094
136651204259
143490a7d41a
151bcd964e64
hex100739bf30

68840701744 has 40 divisors (see below), whose sum is σ = 134076418560. Its totient is φ = 34240680000.

The previous prime is 68840701667. The next prime is 68840701763. The reversal of 68840701744 is 44710704886.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3359209 + ... + 3379639.

It is an arithmetic number, because the mean of its divisors is an integer number (3351910464).

Almost surely, 268840701744 is an apocalyptic number.

It is an amenable number.

68840701744 is a deficient number, since it is larger than the sum of its proper divisors (65235716816).

68840701744 is a wasteful number, since it uses less digits than its factorization.

68840701744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21529 (or 21523 counting only the distinct ones).

The product of its (nonzero) digits is 1204224, while the sum is 49.

The spelling of 68840701744 in words is "sixty-eight billion, eight hundred forty million, seven hundred one thousand, seven hundred forty-four".

Divisors: 1 2 4 8 16 251 502 839 1004 1678 2008 3356 4016 6712 13424 20431 40862 81724 163448 210589 326896 421178 842356 1684712 3369424 5128181 10256362 17141609 20512724 34283218 41025448 68566436 82050896 137132872 274265744 4302543859 8605087718 17210175436 34420350872 68840701744