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90145362 = 23127281421
BaseRepresentation
bin1010101111110…
…00001001010010
320021121212012010
411113320021102
5141034122422
612540043350
72143136316
oct527701122
9207555163
1090145362
11469805aa
1226233556
13158a3168
14bd87b46
157da9b0c
hex55f8252

90145362 has 32 divisors (see below), whose sum is σ = 182790144. Its totient is φ = 29635200.

The previous prime is 90145361. The next prime is 90145379. The reversal of 90145362 is 26354109.

It is a super-2 number, since 2×901453622 = 16252372580222088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90145361) by changing a digit.

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, 213912 + ... + 214332.

It is an arithmetic number, because the mean of its divisors is an integer number (5712192).

Almost surely, 290145362 is an apocalyptic number.

90145362 is an abundant number, since it is smaller than the sum of its proper divisors (92644782).

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

90145362 is a wasteful number, since it uses less digits than its factorization.

90145362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 90145362 is about 9494.4911396030. The cubic root of 90145362 is about 448.3816137512.

The spelling of 90145362 in words is "ninety million, one hundred forty-five thousand, three hundred sixty-two".

Divisors: 1 2 3 6 127 254 281 381 421 562 762 842 843 1263 1686 2526 35687 53467 71374 106934 107061 118301 160401 214122 236602 320802 354903 709806 15024227 30048454 45072681 90145362