[go: up one dir, main page]

Search a number
-
+
384980 = 22519249
BaseRepresentation
bin1011101111111010100
3201120002112
41131333110
544304410
612130152
73162251
oct1357724
9646075
10384980
11243272
12166958
131062cb
14a0428
1579105
hex5dfd4

384980 has 12 divisors (see below), whose sum is σ = 808500. Its totient is φ = 153984.

The previous prime is 384973. The next prime is 385001. The reversal of 384980 is 89483.

384980 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 226576 + 158404 = 476^2 + 398^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9605 + ... + 9644.

It is an arithmetic number, because the mean of its divisors is an integer number (67375).

2384980 is an apocalyptic number.

It is an amenable number.

384980 is an abundant number, since it is smaller than the sum of its proper divisors (423520).

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

384980 is a wasteful number, since it uses less digits than its factorization.

384980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19258 (or 19256 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 384980 is about 620.4675656310. The cubic root of 384980 is about 72.7466037628.

The spelling of 384980 in words is "three hundred eighty-four thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 19249 38498 76996 96245 192490 384980