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90147086 = 2149302507
BaseRepresentation
bin1010101111110…
…00100100001110
320021121221112222
411113320210032
5141034201321
612540055342
72143144331
oct527704416
9207557488
1090147086
1146981927
1226234552
13158a3b93
14bd88618
157daa3ab
hex55f890e

90147086 has 8 divisors (see below), whose sum is σ = 136128600. Its totient is φ = 44770888.

The previous prime is 90147053. The next prime is 90147089. The reversal of 90147086 is 68074109.

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

It is a super-2 number, since 2×901470862 = 16252994228582792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90147089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150956 + ... + 151551.

It is an arithmetic number, because the mean of its divisors is an integer number (17016075).

Almost surely, 290147086 is an apocalyptic number.

90147086 is a deficient number, since it is larger than the sum of its proper divisors (45981514).

90147086 is a wasteful number, since it uses less digits than its factorization.

90147086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302658.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 90147086 is about 9494.5819286580. The cubic root of 90147086 is about 448.3844721160.

The spelling of 90147086 in words is "ninety million, one hundred forty-seven thousand, eighty-six".

Divisors: 1 2 149 298 302507 605014 45073543 90147086