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864132 = 223107673
BaseRepresentation
bin11010010111110000100
31121220100220
43102332010
5210123012
630304340
710226223
oct3227604
91556326
10864132
11540265
123580b0
13243429
14186cba
1512108c
hexd2f84

864132 has 24 divisors (see below), whose sum is σ = 2038176. Its totient is φ = 284928.

The previous prime is 864131. The next prime is 864137. The reversal of 864132 is 231468.

It is a happy number.

864132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×8641322 = 1493448226848, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (864131) 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, 948 + ... + 1620.

It is an arithmetic number, because the mean of its divisors is an integer number (84924).

2864132 is an apocalyptic number.

It is an amenable number.

864132 is an abundant number, since it is smaller than the sum of its proper divisors (1174044).

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

864132 is a wasteful number, since it uses less digits than its factorization.

864132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787 (or 785 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 864132 is about 929.5870050727. The cubic root of 864132 is about 95.2489132632.

The spelling of 864132 in words is "eight hundred sixty-four thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 107 214 321 428 642 673 1284 1346 2019 2692 4038 8076 72011 144022 216033 288044 432066 864132