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22001413 = 731531913
BaseRepresentation
bin101001111101…
…1011100000101
31112101210021011
41103323130011
521113021123
62103322221
7355003030
oct123733405
945353234
1022001413
1111467a95
127450371
1347343b5
142cca017
151de8e0d
hex14fb705

22001413 has 16 divisors (see below), whose sum is σ = 26459136. Its totient is φ = 17896320.

The previous prime is 22001387. The next prime is 22001467. The reversal of 22001413 is 31410022.

It is a cyclic number.

It is not a de Polignac number, because 22001413 - 25 = 22001381 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22001393 and 22001402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22001113) 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, 10545 + ... + 12457.

It is an arithmetic number, because the mean of its divisors is an integer number (1653696).

Almost surely, 222001413 is an apocalyptic number.

It is an amenable number.

22001413 is a deficient number, since it is larger than the sum of its proper divisors (4457723).

22001413 is a wasteful number, since it uses less digits than its factorization.

22001413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2004.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 22001413 is about 4690.5663837110. The cubic root of 22001413 is about 280.2099318486.

Adding to 22001413 its reverse (31410022), we get a palindrome (53411435).

The spelling of 22001413 in words is "twenty-two million, one thousand, four hundred thirteen".

Divisors: 1 7 31 53 217 371 1643 1913 11501 13391 59303 101389 415121 709723 3143059 22001413