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87383424 = 273227561
BaseRepresentation
bin1010011010101…
…01110110000000
320002102112112010
411031111312000
5134332232144
612400532520
72110514112
oct515256600
9202375463
1087383424
1145364507
1225321140
1315146c8b
14b8693b2
157a115b9
hex5355d80

87383424 has 32 divisors (see below), whose sum is σ = 232113240. Its totient is φ = 29127680.

The previous prime is 87383411. The next prime is 87383431. The reversal of 87383424 is 42438378.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113397 + ... + 114164.

Almost surely, 287383424 is an apocalyptic number.

It is an amenable number.

87383424 is an abundant number, since it is smaller than the sum of its proper divisors (144729816).

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

87383424 is a wasteful number, since it uses less digits than its factorization.

87383424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227578 (or 227566 counting only the distinct ones).

The product of its digits is 129024, while the sum is 39.

The square root of 87383424 is about 9347.9101407748. The cubic root of 87383424 is about 443.7547545877.

The spelling of 87383424 in words is "eighty-seven million, three hundred eighty-three thousand, four hundred twenty-four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 128 192 384 227561 455122 682683 910244 1365366 1820488 2730732 3640976 5461464 7281952 10922928 14563904 21845856 29127808 43691712 87383424