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12040284 = 2231759021
BaseRepresentation
bin101101111011…
…100001011100
3211122201011110
4231323201130
511040242114
61110022020
7204224604
oct55734134
924581143
1012040284
116884053
124047910
132657439
141855c04
1510cc759
hexb7b85c

12040284 has 24 divisors (see below), whose sum is σ = 29747088. Its totient is φ = 3777280.

The previous prime is 12040277. The next prime is 12040289. The reversal of 12040284 is 48204021.

It is a self number, because there is not a number n which added to its sum of digits gives 12040284.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12040289) 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, 29307 + ... + 29714.

It is an arithmetic number, because the mean of its divisors is an integer number (1239462).

Almost surely, 212040284 is an apocalyptic number.

It is an amenable number.

12040284 is an abundant number, since it is smaller than the sum of its proper divisors (17706804).

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

12040284 is a wasteful number, since it uses less digits than its factorization.

12040284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59045 (or 59043 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 12040284 is about 3469.9112380578. The cubic root of 12040284 is about 229.1987494183.

It can be divided in two parts, 120 and 40284, that added together give a palindrome (40404).

The spelling of 12040284 in words is "twelve million, forty thousand, two hundred eighty-four".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 59021 118042 177063 236084 354126 708252 1003357 2006714 3010071 4013428 6020142 12040284