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6938086465 = 57611823413
BaseRepresentation
bin1100111011000101…
…01100110001000001
3122220112020022101101
412131202230301001
5103202122231330
63104243134401
7333634522222
oct63542546101
918815208341
106938086465
112a40407062
121417674401
1386753900b
1449b641249
152a91894ca
hex19d8acc41

6938086465 has 8 divisors (see below), whose sum is σ = 8336648808. Its totient is φ = 5543172480.

The previous prime is 6938086457. The next prime is 6938086481. The reversal of 6938086465 is 5646808396.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 67831696 + 6870254769 = 8236^2 + 82887^2 .

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

It is not a de Polignac number, because 6938086465 - 23 = 6938086457 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 907902 + ... + 915511.

It is an arithmetic number, because the mean of its divisors is an integer number (1042081101).

Almost surely, 26938086465 is an apocalyptic number.

It is an amenable number.

6938086465 is a deficient number, since it is larger than the sum of its proper divisors (1398562343).

6938086465 is a wasteful number, since it uses less digits than its factorization.

6938086465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1824179.

The product of its (nonzero) digits is 7464960, while the sum is 55.

The square root of 6938086465 is about 83295.1767211043. The cubic root of 6938086465 is about 1907.2746475704.

The spelling of 6938086465 in words is "six billion, nine hundred thirty-eight million, eighty-six thousand, four hundred sixty-five".

Divisors: 1 5 761 3805 1823413 9117065 1387617293 6938086465