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68850186833 = 211326304203
BaseRepresentation
bin100000000011111001…
…0100111101001010001
320120201021202212201202
41000013302213221101
52112001121434313
651343534240545
74655112634451
oct1000762475121
9216637685652
1068850186833
112722115445a
1211415956155
13665317562c
14349202bd61
151bce6da558
hex1007ca7a51

68850186833 has 4 divisors (see below), whose sum is σ = 69176491248. Its totient is φ = 68523882420.

The previous prime is 68850186799. The next prime is 68850186841. The reversal of 68850186833 is 33868105886.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68850186833 - 28 = 68850186577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68850186733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163151891 + ... + 163152312.

It is an arithmetic number, because the mean of its divisors is an integer number (17294122812).

Almost surely, 268850186833 is an apocalyptic number.

It is an amenable number.

68850186833 is a deficient number, since it is larger than the sum of its proper divisors (326304415).

68850186833 is a wasteful number, since it uses less digits than its factorization.

68850186833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326304414.

The product of its (nonzero) digits is 6635520, while the sum is 56.

The spelling of 68850186833 in words is "sixty-eight billion, eight hundred fifty million, one hundred eighty-six thousand, eight hundred thirty-three".

Divisors: 1 211 326304203 68850186833