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87860982 = 23111331227
BaseRepresentation
bin1010011110010…
…10011011110110
320010022210121110
411033022123312
5134443022412
612415055450
72114543316
oct517123366
9203283543
1087860982
1145660290
1225511586
1315283461
14b951446
157aa7d3c
hex53ca6f6

87860982 has 16 divisors (see below), whose sum is σ = 191696832. Its totient is φ = 26624520.

The previous prime is 87860963. The next prime is 87860987. The reversal of 87860982 is 28906878.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87860987) 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, 665548 + ... + 665679.

It is an arithmetic number, because the mean of its divisors is an integer number (11981052).

Almost surely, 287860982 is an apocalyptic number.

87860982 is an abundant number, since it is smaller than the sum of its proper divisors (103835850).

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

87860982 is a wasteful number, since it uses less digits than its factorization.

87860982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331243.

The product of its (nonzero) digits is 387072, while the sum is 48.

The square root of 87860982 is about 9373.4189066743. The cubic root of 87860982 is about 444.5616724981.

The spelling of 87860982 in words is "eighty-seven million, eight hundred sixty thousand, nine hundred eighty-two".

Divisors: 1 2 3 6 11 22 33 66 1331227 2662454 3993681 7987362 14643497 29286994 43930491 87860982