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7693381 = 29614349
BaseRepresentation
bin11101010110010001000101
3112110212100001
4131112101011
53432142011
6432521301
7122251453
oct35262105
915425301
107693381
114385173
1226b0231
1317949c7
1410439d3
15a1e7c1
hex756445

7693381 has 8 divisors (see below), whose sum is σ = 8091000. Its totient is φ = 7304640.

The previous prime is 7693369. The next prime is 7693393. The reversal of 7693381 is 1833967.

It is an interprime number because it is at equal distance from previous prime (7693369) and next prime (7693393).

It can be written as a sum of positive squares in 4 ways, for example, as 349281 + 7344100 = 591^2 + 2710^2 .

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 7693381 - 25 = 7693349 is a prime.

It is a super-2 number, since 2×76933812 = 118376222422322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7693381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7693331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 406 + ... + 3943.

It is an arithmetic number, because the mean of its divisors is an integer number (1011375).

Almost surely, 27693381 is an apocalyptic number.

It is an amenable number.

7693381 is a deficient number, since it is larger than the sum of its proper divisors (397619).

7693381 is a wasteful number, since it uses less digits than its factorization.

7693381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4439.

The product of its digits is 27216, while the sum is 37.

The square root of 7693381 is about 2773.6944676730. The cubic root of 7693381 is about 197.4114841290.

The spelling of 7693381 in words is "seven million, six hundred ninety-three thousand, three hundred eighty-one".

Divisors: 1 29 61 1769 4349 126121 265289 7693381