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87000536 = 2372367547
BaseRepresentation
bin1010010111110…
…00010111011000
320001201002022002
411023320113120
5134233004121
612344420132
72104330610
oct513702730
9201632262
1087000536
1145122877
1225177648
131504190c
14b7a9a40
157987e0b
hex52f85d8

87000536 has 32 divisors (see below), whose sum is σ = 194538240. Its totient is φ = 35664288.

The previous prime is 87000533. The next prime is 87000547. The reversal of 87000536 is 63500078.

It is a junction number, because it is equal to n+sod(n) for n = 87000499 and 87000508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87000533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32486 + ... + 35061.

It is an arithmetic number, because the mean of its divisors is an integer number (6079320).

Almost surely, 287000536 is an apocalyptic number.

It is an amenable number.

87000536 is an abundant number, since it is smaller than the sum of its proper divisors (107537704).

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

87000536 is a wasteful number, since it uses less digits than its factorization.

87000536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67583 (or 67579 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 87000536 is about 9327.4077856605. The cubic root of 87000536 is about 443.1056721451.

The spelling of 87000536 in words is "eighty-seven million, five hundred thirty-six", and thus it is an aban number.

Divisors: 1 2 4 7 8 14 23 28 46 56 92 161 184 322 644 1288 67547 135094 270188 472829 540376 945658 1553581 1891316 3107162 3782632 6214324 10875067 12428648 21750134 43500268 87000536