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90119 = 227397
BaseRepresentation
bin10110000000000111
311120121202
4112000013
510340434
61533115
7523511
oct260007
9146552
1090119
1161787
124419b
1332033
1424bb1
151ba7e
hex16007

90119 has 4 divisors (see below), whose sum is σ = 90744. Its totient is φ = 89496.

The previous prime is 90107. The next prime is 90121. The reversal of 90119 is 91109.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 91109 = 312939.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-90119 is a prime.

It is a super-2 number, since 2×901192 = 16242868322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90119.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90149) 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, 29 + ... + 425.

It is an arithmetic number, because the mean of its divisors is an integer number (22686).

290119 is an apocalyptic number.

90119 is a deficient number, since it is larger than the sum of its proper divisors (625).

90119 is a wasteful number, since it uses less digits than its factorization.

90119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624.

The product of its (nonzero) digits is 81, while the sum is 20.

The square root of 90119 is about 300.1982678165. The cubic root of 90119 is about 44.8337901432.

Subtracting 90119 from its reverse (91109), we obtain a triangular number (990 = T44).

The spelling of 90119 in words is "ninety thousand, one hundred nineteen".

Divisors: 1 227 397 90119