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68840318341 = 1132167328109
BaseRepresentation
bin100000000011100110…
…0111110010110000101
320120200121012111201001
41000013030332112011
52111441110141331
651342542533301
74654633023364
oct1000714762605
9216617174631
1068840318341
1127216624083
1211412597231
1366510cb8a2
1434909bd7db
151bcd8db561
hex100733e585

68840318341 has 8 divisors (see below), whose sum is σ = 69455199960. Its totient is φ = 68225536512.

The previous prime is 68840318329. The next prime is 68840318353. The reversal of 68840318341 is 14381304886.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (68840318329) and next prime (68840318353).

It can be written as a sum of positive squares in 4 ways, for example, as 119793025 + 68720525316 = 10945^2 + 262146^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68840318341 - 27 = 68840318213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68840318291 and 68840318300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68840318741) 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, 2434995 + ... + 2463103.

It is an arithmetic number, because the mean of its divisors is an integer number (8681899995).

Almost surely, 268840318341 is an apocalyptic number.

It is an amenable number.

68840318341 is a deficient number, since it is larger than the sum of its proper divisors (614881619).

68840318341 is a wasteful number, since it uses less digits than its factorization.

68840318341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49895.

The product of its (nonzero) digits is 442368, while the sum is 46.

The spelling of 68840318341 in words is "sixty-eight billion, eight hundred forty million, three hundred eighteen thousand, three hundred forty-one".

Divisors: 1 113 21673 28109 2449049 3176317 609206357 68840318341