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86888331 = 3210918849
BaseRepresentation
bin1010010110111…
…00111110001011
320001111101101100
411023130332023
5134220411311
612342152443
72103352515
oct513347613
9201441340
1086888331
1145056542
1225122723
131500281a
14b77abb5
157964a56
hex52dcf8b

86888331 has 12 divisors (see below), whose sum is σ = 125634600. Its totient is φ = 57865920.

The previous prime is 86888317. The next prime is 86888341. The reversal of 86888331 is 13388868.

It is not a de Polignac number, because 86888331 - 26 = 86888267 is a prime.

It is a super-2 number, since 2×868883312 = 15099164127931122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86888341) 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, 5395 + ... + 14243.

It is an arithmetic number, because the mean of its divisors is an integer number (10469550).

Almost surely, 286888331 is an apocalyptic number.

86888331 is a deficient number, since it is larger than the sum of its proper divisors (38746269).

86888331 is a wasteful number, since it uses less digits than its factorization.

86888331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9946 (or 9943 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 86888331 is about 9321.3910442594. The cubic root of 86888331 is about 442.9150983713.

The spelling of 86888331 in words is "eighty-six million, eight hundred eighty-eight thousand, three hundred thirty-one".

Divisors: 1 3 9 1091 3273 8849 9819 26547 79641 9654259 28962777 86888331