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68674619340 = 22335127175221
BaseRepresentation
bin111111111101010100…
…111000011111001100
320120021001102010102000
4333331110320133030
52111121200304330
651314303232300
74650551430045
oct777524703714
9216231363360
1068674619340
1127141039a58
1211386ba8690
136625994142
1434769a98cc
151bbe0aa560
hexffd5387cc

68674619340 has 48 divisors (see below), whose sum is σ = 213654372960. Its totient is φ = 18313231680.

The previous prime is 68674619323. The next prime is 68674619357. The reversal of 68674619340 is 4391647686.

It is an interprime number because it is at equal distance from previous prime (68674619323) and next prime (68674619357).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63587071 + ... + 63588150.

It is an arithmetic number, because the mean of its divisors is an integer number (4451132770).

Almost surely, 268674619340 is an apocalyptic number.

68674619340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68674619340 is an abundant number, since it is smaller than the sum of its proper divisors (144979753620).

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

68674619340 is a wasteful number, since it uses less digits than its factorization.

68674619340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127175239 (or 127175231 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 54.

The spelling of 68674619340 in words is "sixty-eight billion, six hundred seventy-four million, six hundred nineteen thousand, three hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 90 108 135 180 270 540 127175221 254350442 381525663 508700884 635876105 763051326 1144576989 1271752210 1526102652 1907628315 2289153978 2543504420 3433730967 3815256630 4578307956 5722884945 6867461934 7630513260 11445769890 13734923868 17168654835 22891539780 34337309670 68674619340