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90575135 = 572587861
BaseRepresentation
bin1010110011000…
…01000100011111
320022102200201122
411121201010133
5141141401020
612553201155
72146606310
oct531410437
9208380648
1090575135
1147144492
12264001bb
13159c3971
14c05a607
157e42125
hex566111f

90575135 has 8 divisors (see below), whose sum is σ = 124217376. Its totient is φ = 62108640.

The previous prime is 90575129. The next prime is 90575141. The reversal of 90575135 is 53157509.

It is an interprime number because it is at equal distance from previous prime (90575129) and next prime (90575141).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90575135 - 24 = 90575119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 2587861 = 90575135 / (9 + 0 + 5 + 7 + 5 + 1 + 3 + 5).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90575095 and 90575104.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1293896 + ... + 1293965.

It is an arithmetic number, because the mean of its divisors is an integer number (15527172).

Almost surely, 290575135 is an apocalyptic number.

90575135 is a deficient number, since it is larger than the sum of its proper divisors (33642241).

90575135 is a wasteful number, since it uses less digits than its factorization.

90575135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2587873.

The product of its (nonzero) digits is 23625, while the sum is 35.

The square root of 90575135 is about 9517.0969838496. The cubic root of 90575135 is about 449.0930457315.

The spelling of 90575135 in words is "ninety million, five hundred seventy-five thousand, one hundred thirty-five".

Divisors: 1 5 7 35 2587861 12939305 18115027 90575135