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90683317 = 234138737
BaseRepresentation
bin1010110011110…
…11011110110101
320022122012010101
411121323132311
5141203331232
612555354101
72150536564
oct531733665
9208565111
1090683317
114720879a
1226452931
1315a30c8a
14c087bdb
157e641e7
hex567b7b5

90683317 has 4 divisors (see below), whose sum is σ = 90724396. Its totient is φ = 90642240.

The previous prime is 90683311. The next prime is 90683323. The reversal of 90683317 is 71338609.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71338609 = 227314267.

It is an interprime number because it is at equal distance from previous prime (90683311) and next prime (90683323).

It can be written as a sum of positive squares in 2 ways, for example, as 31069476 + 59613841 = 5574^2 + 7721^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-90683317 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 (90683311) 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, 17028 + ... + 21709.

It is an arithmetic number, because the mean of its divisors is an integer number (22681099).

Almost surely, 290683317 is an apocalyptic number.

It is an amenable number.

90683317 is a deficient number, since it is larger than the sum of its proper divisors (41079).

90683317 is a wasteful number, since it uses less digits than its factorization.

90683317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41078.

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

The square root of 90683317 is about 9522.7788486345. The cubic root of 90683317 is about 449.2717719497.

The spelling of 90683317 in words is "ninety million, six hundred eighty-three thousand, three hundred seventeen".

Divisors: 1 2341 38737 90683317