Search a number
-
+
90955 = 518191
BaseRepresentation
bin10110001101001011
311121202201
4112031023
510402310
61541031
7526114
oct261513
9147681
1090955
1162377
1244777
1332527
142520b
151be3a
hex1634b

90955 has 4 divisors (see below), whose sum is σ = 109152. Its totient is φ = 72760.

The previous prime is 90947. The next prime is 90971. The reversal of 90955 is 55909.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 90955 - 23 = 90947 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a zygodrome in base 12.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9091 + ... + 9100.

It is an arithmetic number, because the mean of its divisors is an integer number (27288).

290955 is an apocalyptic number.

90955 is a deficient number, since it is larger than the sum of its proper divisors (18197).

90955 is a wasteful number, since it uses less digits than its factorization.

90955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18196.

The product of its (nonzero) digits is 2025, while the sum is 28.

The square root of 90955 is about 301.5874665831. The cubic root of 90955 is about 44.9719990411.

The spelling of 90955 in words is "ninety thousand, nine hundred fifty-five".

Divisors: 1 5 18191 90955