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4678131761 = 53349252913
BaseRepresentation
bin1000101101101011…
…01010000000110001
3110002000201201100022
410112311222000301
534040100204021
62052112333225
7223633315052
oct42665520061
913060651308
104678131761
111a907576a6
12aa6844215
13597275204
14325438729
151c5a781ab
hex116d6a031

4678131761 has 8 divisors (see below), whose sum is σ = 4780074600. Its totient is φ = 4576695552.

The previous prime is 4678131749. The next prime is 4678131803. The reversal of 4678131761 is 1671318764.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 885419536 + 3792712225 = 29756^2 + 61585^2 .

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 4678131761 - 26 = 4678131697 is a prime.

It is a super-2 number, since 2×46781317612 = 43769833546553922242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4678101761) 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, 107960 + ... + 144953.

It is an arithmetic number, because the mean of its divisors is an integer number (597509325).

Almost surely, 24678131761 is an apocalyptic number.

It is an amenable number.

4678131761 is a deficient number, since it is larger than the sum of its proper divisors (101942839).

4678131761 is a wasteful number, since it uses less digits than its factorization.

4678131761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253315.

The product of its digits is 169344, while the sum is 44.

The square root of 4678131761 is about 68396.8695263168. The cubic root of 4678131761 is about 1672.4667146829.

The spelling of 4678131761 in words is "four billion, six hundred seventy-eight million, one hundred thirty-one thousand, seven hundred sixty-one".

Divisors: 1 53 349 18497 252913 13404389 88266637 4678131761