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87051408 = 2434633917
BaseRepresentation
bin1010011000001…
…00110010010000
320001210200002020
411030010302100
5134241121113
612345451440
72104632123
oct514046220
9201720066
1087051408
1145158014
12251a0b80
131505bb12
14b7c03ba
157998023
hex5304c90

87051408 has 40 divisors (see below), whose sum is σ = 225426048. Its totient is φ = 28947072.

The previous prime is 87051403. The next prime is 87051439. The reversal of 87051408 is 80415078.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (87051403) 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, 20266 + ... + 24182.

Almost surely, 287051408 is an apocalyptic number.

It is an amenable number.

87051408 is an abundant number, since it is smaller than the sum of its proper divisors (138374640).

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

87051408 is a wasteful number, since it uses less digits than its factorization.

87051408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4391 (or 4385 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 87051408 is about 9330.1344041766. The cubic root of 87051408 is about 443.1920213432.

The spelling of 87051408 in words is "eighty-seven million, fifty-one thousand, four hundred eight".

Divisors: 1 2 3 4 6 8 12 16 24 48 463 926 1389 1852 2778 3704 3917 5556 7408 7834 11112 11751 15668 22224 23502 31336 47004 62672 94008 188016 1813571 3627142 5440713 7254284 10881426 14508568 21762852 29017136 43525704 87051408