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22013031133 = 75412919113
BaseRepresentation
bin10100100000000101…
…000011001011011101
32002211010101211211101
4110200011003023131
5330040313444013
614040155353101
71406334451222
oct244005031335
962733354741
1022013031133
119376867115
124324152791
1320ca765412
1410cb7b3949
1588c8548dd
hex5201432dd

22013031133 has 4 divisors (see below), whose sum is σ = 22015957788. Its totient is φ = 22010104480.

The previous prime is 22013031127. The next prime is 22013031137. The reversal of 22013031133 is 33113031022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14189097924 + 7823933209 = 119118^2 + 88453^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-22013031133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22013031133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22013031137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1452016 + ... + 1467097.

It is an arithmetic number, because the mean of its divisors is an integer number (5503989447).

Almost surely, 222013031133 is an apocalyptic number.

It is an amenable number.

22013031133 is a deficient number, since it is larger than the sum of its proper divisors (2926655).

22013031133 is an equidigital number, since it uses as much as digits as its factorization.

22013031133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2926654.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 22013031133 its reverse (33113031022), we get a palindrome (55126062155).

The spelling of 22013031133 in words is "twenty-two billion, thirteen million, thirty-one thousand, one hundred thirty-three".

Divisors: 1 7541 2919113 22013031133