Search a number
-
+
90100356 = 223191392843
BaseRepresentation
bin1010101111011…
…01001010000100
320021112120110020
411113231022010
5141031202411
612535055140
72142561153
oct527551204
9207476406
1090100356
114694a805
12262114b0
1315888828
14bd7559a
157d9b606
hex55ed284

90100356 has 48 divisors (see below), whose sum is σ = 222969600. Its totient is φ = 28238112.

The previous prime is 90100333. The next prime is 90100397. The reversal of 90100356 is 65300109.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30271 + ... + 33113.

It is an arithmetic number, because the mean of its divisors is an integer number (4645200).

Almost surely, 290100356 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90100356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111484800).

90100356 is an abundant number, since it is smaller than the sum of its proper divisors (132869244).

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

90100356 is a wasteful number, since it uses less digits than its factorization.

90100356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3008 (or 3006 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 90100356 is about 9492.1207324812. The cubic root of 90100356 is about 448.3069816173.

The spelling of 90100356 in words is "ninety million, one hundred thousand, three hundred fifty-six".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 139 228 278 417 556 834 1668 2641 2843 5282 5686 7923 8529 10564 11372 15846 17058 31692 34116 54017 108034 162051 216068 324102 395177 648204 790354 1185531 1580708 2371062 4742124 7508363 15016726 22525089 30033452 45050178 90100356