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87537361 = 831054667
BaseRepresentation
bin1010011011110…
…11011011010001
320002201100200111
411031323123101
5134402143421
612404121321
72112024652
oct515733321
9202640614
1087537361
114545a12a
1225396241
131519c072
14b8a9529
157a41ee1
hex537b6d1

87537361 has 4 divisors (see below), whose sum is σ = 88592112. Its totient is φ = 86482612.

The previous prime is 87537353. The next prime is 87537367. The reversal of 87537361 is 16373578.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87537361 - 23 = 87537353 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87537367) 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, 527251 + ... + 527416.

It is an arithmetic number, because the mean of its divisors is an integer number (22148028).

Almost surely, 287537361 is an apocalyptic number.

It is an amenable number.

87537361 is a deficient number, since it is larger than the sum of its proper divisors (1054751).

87537361 is a wasteful number, since it uses less digits than its factorization.

87537361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054750.

The product of its digits is 105840, while the sum is 40.

The square root of 87537361 is about 9356.1402832578. The cubic root of 87537361 is about 444.0151785115.

The spelling of 87537361 in words is "eighty-seven million, five hundred thirty-seven thousand, three hundred sixty-one".

Divisors: 1 83 1054667 87537361