Search a number
-
+
90145266 = 2315024211
BaseRepresentation
bin1010101111110…
…00000111110010
320021121212001120
411113320013302
5141034122031
612540043110
72143136121
oct527700762
9207555046
1090145266
1146980522
1226233496
13158a30c3
14bd87ab8
157da9a96
hex55f81f2

90145266 has 8 divisors (see below), whose sum is σ = 180290544. Its totient is φ = 30048420.

The previous prime is 90145261. The next prime is 90145267. The reversal of 90145266 is 66254109.

It is a sphenic number, since it is the product of 3 distinct primes.

90145266 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (90145261) 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, 7512100 + ... + 7512111.

It is an arithmetic number, because the mean of its divisors is an integer number (22536318).

Almost surely, 290145266 is an apocalyptic number.

90145266 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

90145266 is a wasteful number, since it uses less digits than its factorization.

90145266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15024216.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 90145266 is about 9494.4860840385. The cubic root of 90145266 is about 448.3814545837.

The spelling of 90145266 in words is "ninety million, one hundred forty-five thousand, two hundred sixty-six".

Divisors: 1 2 3 6 15024211 30048422 45072633 90145266