Search a number
-
+
122284 = 22191609
BaseRepresentation
bin11101110110101100
320012202001
4131312230
512403114
62342044
71016341
oct356654
9205661
10122284
1183968
125a924
1343876
14327c8
1526374
hex1ddac

122284 has 12 divisors (see below), whose sum is σ = 225400. Its totient is φ = 57888.

The previous prime is 122279. The next prime is 122299. The reversal of 122284 is 482221.

Subtracting from 122284 its sum of digits (19), we obtain a triangular number (122265 = T494).

It can be divided in two parts, 122 and 284, that added together give a triangular number (406 = T28).

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 729 + ... + 880.

2122284 is an apocalyptic number.

It is an amenable number.

122284 is a deficient number, since it is larger than the sum of its proper divisors (103116).

122284 is a wasteful number, since it uses less digits than its factorization.

122284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1632 (or 1630 counting only the distinct ones).

The product of its digits is 256, while the sum is 19.

The square root of 122284 is about 349.6912924281. The cubic root of 122284 is about 49.6352117294.

The spelling of 122284 in words is "one hundred twenty-two thousand, two hundred eighty-four".

Divisors: 1 2 4 19 38 76 1609 3218 6436 30571 61142 122284