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87089298 = 2314514883
BaseRepresentation
bin1010011000011…
…10000010010010
320001212121001120
411030032002102
5134243324143
612350343110
72105150442
oct514160222
9201777046
1087089298
114518352a
12251baa96
131507313a
14b7d0122
1579a4383
hex530e092

87089298 has 8 divisors (see below), whose sum is σ = 174178608. Its totient is φ = 29029764.

The previous prime is 87089297. The next prime is 87089309. The reversal of 87089298 is 89298078.

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

87089298 is an admirable number.

It is a super-2 number, since 2×870892982 = 15169091652265608, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 87089298.

It is not an unprimeable number, because it can be changed into a prime (87089297) 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, 7257436 + ... + 7257447.

It is an arithmetic number, because the mean of its divisors is an integer number (21772326).

Almost surely, 287089298 is an apocalyptic number.

87089298 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

87089298 is a wasteful number, since it uses less digits than its factorization.

87089298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14514888.

The product of its (nonzero) digits is 580608, while the sum is 51.

The square root of 87089298 is about 9332.1647006469. The cubic root of 87089298 is about 443.2563132764.

The spelling of 87089298 in words is "eighty-seven million, eighty-nine thousand, two hundred ninety-eight".

Divisors: 1 2 3 6 14514883 29029766 43544649 87089298