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6749103143 = 28323848421
BaseRepresentation
bin1100100100100011…
…10010010000100111
3122102100121222000002
412102101302100213
5102310232300033
63033412411515
7326151300356
oct62221622047
918370558002
106749103143
1129537690a2
121384316b9b
1383733b273
144804c999d
152977a93e8
hex192472427

6749103143 has 4 divisors (see below), whose sum is σ = 6772951848. Its totient is φ = 6725254440.

The previous prime is 6749103131. The next prime is 6749103149. The reversal of 6749103143 is 3413019476.

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 6749103143 - 26 = 6749103079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6749103097 and 6749103106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6749103149) 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, 11923928 + ... + 11924493.

It is an arithmetic number, because the mean of its divisors is an integer number (1693237962).

Almost surely, 26749103143 is an apocalyptic number.

6749103143 is a deficient number, since it is larger than the sum of its proper divisors (23848705).

6749103143 is a wasteful number, since it uses less digits than its factorization.

6749103143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23848704.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 6749103143 is about 82152.9253465755. The cubic root of 6749103143 is about 1889.7978697266.

The spelling of 6749103143 in words is "six billion, seven hundred forty-nine million, one hundred three thousand, one hundred forty-three".

Divisors: 1 283 23848421 6749103143