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6687352741 = 231971475911
BaseRepresentation
bin1100011101001100…
…01110011110100101
3122021001102201101011
412032212032132211
5102143430241431
63023325102221
7324501363136
oct61646163645
918231381334
106687352741
112921922103
1213676b7971
138275ca674
14476213c8d
1529215ccb1
hex18e98e7a5

6687352741 has 8 divisors (see below), whose sum is σ = 7013533824. Its totient is φ = 6364123920.

The previous prime is 6687352739. The next prime is 6687352753. The reversal of 6687352741 is 1472537866.

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

It is not a de Polignac number, because 6687352741 - 21 = 6687352739 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 (6687362741) 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, 733425 + ... + 742486.

It is an arithmetic number, because the mean of its divisors is an integer number (876691728).

Almost surely, 26687352741 is an apocalyptic number.

It is an amenable number.

6687352741 is a deficient number, since it is larger than the sum of its proper divisors (326181083).

6687352741 is a wasteful number, since it uses less digits than its factorization.

6687352741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1476131.

The product of its digits is 1693440, while the sum is 49.

The square root of 6687352741 is about 81776.2357962263. The cubic root of 6687352741 is about 1884.0166819392.

The spelling of 6687352741 in words is "six billion, six hundred eighty-seven million, three hundred fifty-two thousand, seven hundred forty-one".

Divisors: 1 23 197 4531 1475911 33945953 290754467 6687352741