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23223311013 = 371958203787
BaseRepresentation
bin10101101000001101…
…111001101010100101
32012221110202102201010
4111220031321222211
5340030131423023
614400232052433
71451331613050
oct255015715245
965843672633
1023223311013
119937a54321
124601534119
132261418966
1411a441ba97
1590dc21093
hex568379aa5

23223311013 has 16 divisors (see below), whose sum is σ = 37250424320. Its totient is φ = 12572017776.

The previous prime is 23223310997. The next prime is 23223311053. The reversal of 23223311013 is 31011332232.

It is not a de Polignac number, because 23223311013 - 24 = 23223310997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23223311053) 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, 29101495 + ... + 29102292.

It is an arithmetic number, because the mean of its divisors is an integer number (2328151520).

Almost surely, 223223311013 is an apocalyptic number.

It is an amenable number.

23223311013 is a deficient number, since it is larger than the sum of its proper divisors (14027113307).

23223311013 is a wasteful number, since it uses less digits than its factorization.

23223311013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58203816.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 23223311013 its reverse (31011332232), we get a palindrome (54234643245).

The spelling of 23223311013 in words is "twenty-three billion, two hundred twenty-three million, three hundred eleven thousand, thirteen".

Divisors: 1 3 7 19 21 57 133 399 58203787 174611361 407426509 1105871953 1222279527 3317615859 7741103671 23223311013