Search a number
-
+
90689341 = 739122719
BaseRepresentation
bin1010110011111…
…00111100111101
320022122111101111
411121330330331
5141204024331
612555442021
72150563261
oct531747475
9208574344
1090689341
1147212276
1226456311
1315a33942
14c08a0a1
157e65db1
hex567cf3d

90689341 has 4 divisors (see below), whose sum is σ = 90812800. Its totient is φ = 90565884.

The previous prime is 90689329. The next prime is 90689359. The reversal of 90689341 is 14398609.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14398609 = 17846977.

It is a cyclic number.

It is not a de Polignac number, because 90689341 - 223 = 82300733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90689294 and 90689303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90689311) 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, 60621 + ... + 62098.

It is an arithmetic number, because the mean of its divisors is an integer number (22703200).

Almost surely, 290689341 is an apocalyptic number.

It is an amenable number.

90689341 is a deficient number, since it is larger than the sum of its proper divisors (123459).

90689341 is a wasteful number, since it uses less digits than its factorization.

90689341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123458.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 90689341 is about 9523.0951376115. The cubic root of 90689341 is about 449.2817199509.

The spelling of 90689341 in words is "ninety million, six hundred eighty-nine thousand, three hundred forty-one".

Divisors: 1 739 122719 90689341