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90527142 = 23171575653
BaseRepresentation
bin1010110010101…
…01010110100110
320022100020220010
411121111112212
5141133332032
612552151050
72146316346
oct531252646
9208306803
1090527142
1147111422
1226398486
13159a7b74
14c046d26
157e32ccc
hex56555a6

90527142 has 32 divisors (see below), whose sum is σ = 192959712. Its totient is φ = 28214784.

The previous prime is 90527137. The next prime is 90527147. The reversal of 90527142 is 24172509.

It is an interprime number because it is at equal distance from previous prime (90527137) and next prime (90527147).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90527147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13188 + ... + 18840.

It is an arithmetic number, because the mean of its divisors is an integer number (6029991).

Almost surely, 290527142 is an apocalyptic number.

90527142 is an abundant number, since it is smaller than the sum of its proper divisors (102432570).

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

90527142 is a wasteful number, since it uses less digits than its factorization.

90527142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5832.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 90527142 is about 9514.5752401250. The cubic root of 90527142 is about 449.0137114842.

The spelling of 90527142 in words is "ninety million, five hundred twenty-seven thousand, one hundred forty-two".

Divisors: 1 2 3 6 17 34 51 102 157 314 471 942 2669 5338 5653 8007 11306 16014 16959 33918 96101 192202 288303 576606 887521 1775042 2662563 5325126 15087857 30175714 45263571 90527142