Search a number
-
+
90068526 = 23213138197
BaseRepresentation
bin1010101111001…
…01011000101110
320021110221210100
411113211120232
5141024143101
612534251530
72142366312
oct527453056
9207427710
1090068526
11469288a9
12261b6ba6
13158771b2
14bd67b42
157d91e86
hex55e562e

90068526 has 24 divisors (see below), whose sum is σ = 196643304. Its totient is φ = 29792880.

The previous prime is 90068509. The next prime is 90068543. The reversal of 90068526 is 62586009.

It is an interprime number because it is at equal distance from previous prime (90068509) and next prime (90068543).

It is a super-3 number, since 3×900685263 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16741 + ... + 21456.

It is an arithmetic number, because the mean of its divisors is an integer number (8193471).

Almost surely, 290068526 is an apocalyptic number.

90068526 is an abundant number, since it is smaller than the sum of its proper divisors (106574778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90068526 is a wasteful number, since it uses less digits than its factorization.

90068526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38336 (or 38333 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 90068526 is about 9490.4439306073. The cubic root of 90068526 is about 448.2541838537.

The spelling of 90068526 in words is "ninety million, sixty-eight thousand, five hundred twenty-six".

Divisors: 1 2 3 6 9 18 131 262 393 786 1179 2358 38197 76394 114591 229182 343773 687546 5003807 10007614 15011421 30022842 45034263 90068526