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86944428 = 223589449
BaseRepresentation
bin1010010111010…
…10101010101100
320001121020100000
411023222222230
5134224210203
612343304300
72104005204
oct513525254
9201536300
1086944428
11450946aa
122514b090
131502220c
14b793404
1579764a3
hex52eaaac

86944428 has 36 divisors (see below), whose sum is σ = 227918600. Its totient is φ = 28981152.

The previous prime is 86944427. The next prime is 86944469. The reversal of 86944428 is 82444968.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (86944421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43753 + ... + 45696.

Almost surely, 286944428 is an apocalyptic number.

It is an amenable number.

86944428 is an abundant number, since it is smaller than the sum of its proper divisors (140974172).

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

86944428 is a wasteful number, since it uses less digits than its factorization.

86944428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89468 (or 89454 counting only the distinct ones).

The product of its digits is 442368, while the sum is 45.

The square root of 86944428 is about 9324.3996053365. The cubic root of 86944428 is about 443.0103964120.

The spelling of 86944428 in words is "eighty-six million, nine hundred forty-four thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 243 324 486 972 89449 178898 268347 357796 536694 805041 1073388 1610082 2415123 3220164 4830246 7245369 9660492 14490738 21736107 28981476 43472214 86944428