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22007013 = 374324371
BaseRepresentation
bin101001111110…
…0110011100101
31112102001221120
41103330303211
521113211023
62103404153
7355025250
oct123746345
945361846
1022007013
1111471216
127453659
134736b02
142ccc097
151dea8e3
hex14fcce5

22007013 has 16 divisors (see below), whose sum is σ = 34315776. Its totient is φ = 12282480.

The previous prime is 22007003. The next prime is 22007023. The reversal of 22007013 is 31070022.

It is an interprime number because it is at equal distance from previous prime (22007003) and next prime (22007023).

It is not a de Polignac number, because 22007013 - 25 = 22006981 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22006983 and 22007001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22007003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11283 + ... + 13088.

It is an arithmetic number, because the mean of its divisors is an integer number (2144736).

Almost surely, 222007013 is an apocalyptic number.

It is an amenable number.

22007013 is a deficient number, since it is larger than the sum of its proper divisors (12308763).

22007013 is a wasteful number, since it uses less digits than its factorization.

22007013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24424.

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 22007013 is about 4691.1632885671. The cubic root of 22007013 is about 280.2337036931.

Adding to 22007013 its reverse (31070022), we get a palindrome (53077035).

The spelling of 22007013 in words is "twenty-two million, seven thousand, thirteen".

Divisors: 1 3 7 21 43 129 301 903 24371 73113 170597 511791 1047953 3143859 7335671 22007013