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6918950023 = 42841161503
BaseRepresentation
bin1100111000110011…
…01100110010000111
3122212012020002010021
412130121230302013
5103132222400043
63102321040011
7333313050646
oct63431546207
918765202107
106918950023
112a30626617
121411186007
1386359898b
14498c9d35d
152a76593ed
hex19c66cc87

6918950023 has 4 divisors (see below), whose sum is σ = 6919154368. Its totient is φ = 6918745680.

The previous prime is 6918950021. The next prime is 6918950029. The reversal of 6918950023 is 3200598196.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6918950023 - 21 = 6918950021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6918950021) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 37911 + ... + 123592.

It is an arithmetic number, because the mean of its divisors is an integer number (1729788592).

Almost surely, 26918950023 is an apocalyptic number.

6918950023 is a deficient number, since it is larger than the sum of its proper divisors (204345).

6918950023 is a wasteful number, since it uses less digits than its factorization.

6918950023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204344.

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 6918950023 is about 83180.2261538161. The cubic root of 6918950023 is about 1905.5195018389.

The spelling of 6918950023 in words is "six billion, nine hundred eighteen million, nine hundred fifty thousand, twenty-three".

Divisors: 1 42841 161503 6918950023