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87025293 = 333223159
BaseRepresentation
bin1010010111111…
…10011010001101
320001202100021000
411023332122031
5134234302133
612345130513
72104463025
oct513763215
9201670230
1087025293
114513a433
1225189a39
131504cc74
14b7b4a85
157990413
hex52fe68d

87025293 has 8 divisors (see below), whose sum is σ = 128926400. Its totient is φ = 58016844.

The previous prime is 87025291. The next prime is 87025297. The reversal of 87025293 is 39252078.

It is a happy number.

It is not a de Polignac number, because 87025293 - 21 = 87025291 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87025291) 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, 1611553 + ... + 1611606.

It is an arithmetic number, because the mean of its divisors is an integer number (16115800).

Almost surely, 287025293 is an apocalyptic number.

It is an amenable number.

87025293 is a deficient number, since it is larger than the sum of its proper divisors (41901107).

87025293 is a wasteful number, since it uses less digits than its factorization.

87025293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3223168 (or 3223162 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 87025293 is about 9328.7348016759. The cubic root of 87025293 is about 443.1476984254.

The spelling of 87025293 in words is "eighty-seven million, twenty-five thousand, two hundred ninety-three".

Divisors: 1 3 9 27 3223159 9669477 29008431 87025293