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90247882 = 2311917621
BaseRepresentation
bin1010110000100…
…01001011001010
320021211001211011
411120101023022
5141100413012
612542154134
72144044234
oct530211312
9207731734
1090247882
1146a4062a
122628294a
131590aa1a
14bdb3254
157dca1a7
hex56112ca

90247882 has 16 divisors (see below), whose sum is σ = 140488704. Its totient is φ = 43434000.

The previous prime is 90247831. The next prime is 90247897. The reversal of 90247882 is 28874209.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8032 + ... + 15652.

It is an arithmetic number, because the mean of its divisors is an integer number (8780544).

Almost surely, 290247882 is an apocalyptic number.

90247882 is a deficient number, since it is larger than the sum of its proper divisors (50240822).

90247882 is a wasteful number, since it uses less digits than its factorization.

90247882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7845.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 90247882 is about 9499.8885256618. Note that the first 3 decimals coincide. The cubic root of 90247882 is about 448.5515269777.

It can be divided in two parts, 902 and 47882, that added together give a palindrome (48784).

The spelling of 90247882 in words is "ninety million, two hundred forty-seven thousand, eight hundred eighty-two".

Divisors: 1 2 31 62 191 382 5921 7621 11842 15242 236251 472502 1455611 2911222 45123941 90247882