Search a number
-
+
672885 = 32519787
BaseRepresentation
bin10100100010001110101
31021012000200
42210101311
5133013020
622231113
75501523
oct2442165
91235020
10672885
1141a604
12285499
131a7375
14137313
15d4590
hexa4475

672885 has 24 divisors (see below), whose sum is σ = 1229280. Its totient is φ = 339552.

The previous prime is 672883. The next prime is 672901. The reversal of 672885 is 588276.

It is not a de Polignac number, because 672885 - 21 = 672883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672883) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 462 + ... + 1248.

It is an arithmetic number, because the mean of its divisors is an integer number (51220).

2672885 is an apocalyptic number.

It is an amenable number.

672885 is a deficient number, since it is larger than the sum of its proper divisors (556395).

672885 is a wasteful number, since it uses less digits than its factorization.

672885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817 (or 814 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 672885 is about 820.2956783990. The cubic root of 672885 is about 87.6288170658.

The spelling of 672885 in words is "six hundred seventy-two thousand, eight hundred eighty-five".

Divisors: 1 3 5 9 15 19 45 57 95 171 285 787 855 2361 3935 7083 11805 14953 35415 44859 74765 134577 224295 672885