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12071022 = 238324239
BaseRepresentation
bin101110000011…
…000001101110
3211201021022220
4232003001232
511042233042
61110420210
7204413325
oct56030156
924637286
1012071022
1168a5157
124061666
132668422
1418630bc
1510d68ec
hexb8306e

12071022 has 16 divisors (see below), whose sum is σ = 24433920. Its totient is φ = 3975032.

The previous prime is 12070979. The next prime is 12071027. The reversal of 12071022 is 22017021.

It is a junction number, because it is equal to n+sod(n) for n = 12070992 and 12071010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12071027) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 11622 + ... + 12617.

It is an arithmetic number, because the mean of its divisors is an integer number (1527120).

Almost surely, 212071022 is an apocalyptic number.

12071022 is an abundant number, since it is smaller than the sum of its proper divisors (12362898).

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

12071022 is a wasteful number, since it uses less digits than its factorization.

12071022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24327.

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 12071022 is about 3474.3376347154. The cubic root of 12071022 is about 229.3936264501.

Adding to 12071022 its reverse (22017021), we get a palindrome (34088043).

The spelling of 12071022 in words is "twelve million, seventy-one thousand, twenty-two".

Divisors: 1 2 3 6 83 166 249 498 24239 48478 72717 145434 2011837 4023674 6035511 12071022