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869472 = 25323019
BaseRepresentation
bin11010100010001100000
31122011200200
43110101200
5210310342
630345200
710250622
oct3242140
91564620
10869472
1154427a
1235b200
132459a6
14188c12
1512294c
hexd4460

869472 has 36 divisors (see below), whose sum is σ = 2473380. Its totient is φ = 289728.

The previous prime is 869471. The next prime is 869489. The reversal of 869472 is 274968.

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

It is a Harshad number since it is a multiple of its sum of digits (36).

Its product of digits (24192) is a multiple of the sum of its prime divisors (3024).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 869472.

It is not an unprimeable number, because it can be changed into a prime (869471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1222 + ... + 1797.

It is an arithmetic number, because the mean of its divisors is an integer number (68705).

2869472 is an apocalyptic number.

It is an amenable number.

869472 is an abundant number, since it is smaller than the sum of its proper divisors (1603908).

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

869472 is a wasteful number, since it uses less digits than its factorization.

869472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3035 (or 3024 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 869472 is about 932.4548246430. The cubic root of 869472 is about 95.4447109225. Note that the first 3 decimals are identical.

The spelling of 869472 in words is "eight hundred sixty-nine thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 144 288 3019 6038 9057 12076 18114 24152 27171 36228 48304 54342 72456 96608 108684 144912 217368 289824 434736 869472