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1368318305 = 51086725183
BaseRepresentation
bin101000110001110…
…1110000101100001
310112100201202211202
41101203232011201
510300242141210
6343435450545
745623341124
oct12143560541
93470652752
101368318305
1164241a882
123222b6a55
1318a638203
14cda263bb
15801d79a5
hex518ee161

1368318305 has 8 divisors (see below), whose sum is σ = 1642198272. Its totient is φ = 1094510448.

The previous prime is 1368318293. The next prime is 1368318313. The reversal of 1368318305 is 5038138631.

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 1368318305 - 26 = 1368318241 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41744 + ... + 66926.

It is an arithmetic number, because the mean of its divisors is an integer number (205274784).

Almost surely, 21368318305 is an apocalyptic number.

It is an amenable number.

1368318305 is a deficient number, since it is larger than the sum of its proper divisors (273879967).

1368318305 is a wasteful number, since it uses less digits than its factorization.

1368318305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36055.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 1368318305 is about 36990.7867583267. The cubic root of 1368318305 is about 1110.1859129120.

The spelling of 1368318305 in words is "one billion, three hundred sixty-eight million, three hundred eighteen thousand, three hundred five".

Divisors: 1 5 10867 25183 54335 125915 273663661 1368318305