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90483890 = 2572199719
BaseRepresentation
bin1010110010010…
…10110010110010
320022021001120012
411121022302302
5141130441030
612551214522
72146046300
oct531126262
9208231505
1090483890
1147091982
1226377442
1315991283
14c035270
157e25095
hex564acb2

90483890 has 48 divisors (see below), whose sum is σ = 199454400. Its totient is φ = 29387232.

The previous prime is 90483859. The next prime is 90483893. The reversal of 90483890 is 9838409.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (90483893) 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 23 ways as a sum of consecutive naturals, for example, 4451 + ... + 14169.

It is an arithmetic number, because the mean of its divisors is an integer number (4155300).

Almost surely, 290483890 is an apocalyptic number.

90483890 is an abundant number, since it is smaller than the sum of its proper divisors (108970510).

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

90483890 is a wasteful number, since it uses less digits than its factorization.

90483890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9759 (or 9752 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 90483890 is about 9512.3020347338. The cubic root of 90483890 is about 448.9421902645.

The spelling of 90483890 in words is "ninety million, four hundred eighty-three thousand, eight hundred ninety".

Divisors: 1 2 5 7 10 14 19 35 38 49 70 95 98 133 190 245 266 490 665 931 1330 1862 4655 9310 9719 19438 48595 68033 97190 136066 184661 340165 369322 476231 680330 923305 952462 1292627 1846610 2381155 2585254 4762310 6463135 9048389 12926270 18096778 45241945 90483890