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90852858 = 23214233547
BaseRepresentation
bin1010110101001…
…00110111111010
320022221210200200
411122210313322
5141224242413
613003143030
72152144065
oct532446772
9208853620
1090852858
1147314108
1226514a76
1315a901b5
14c0cd8dc
157e99573
hex56a4dfa

90852858 has 24 divisors (see below), whose sum is σ = 197041728. Its totient is φ = 30254472.

The previous prime is 90852821. The next prime is 90852859. The reversal of 90852858 is 85825809.

It is not an unprimeable number, because it can be changed into a prime (90852859) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23841 + ... + 27387.

It is an arithmetic number, because the mean of its divisors is an integer number (8210072).

Almost surely, 290852858 is an apocalyptic number.

90852858 is an abundant number, since it is smaller than the sum of its proper divisors (106188870).

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

90852858 is a wasteful number, since it uses less digits than its factorization.

90852858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4978 (or 4975 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 45.

The square root of 90852858 is about 9531.6765576681. The cubic root of 90852858 is about 449.5515829384.

The spelling of 90852858 in words is "ninety million, eight hundred fifty-two thousand, eight hundred fifty-eight".

Divisors: 1 2 3 6 9 18 1423 2846 3547 4269 7094 8538 10641 12807 21282 25614 31923 63846 5047381 10094762 15142143 30284286 45426429 90852858