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11214222013 = 60071866859
BaseRepresentation
bin10100111000110101…
…10111001010111101
31001221112112111121001
422130122313022331
5140431320101023
65052435410301
7544620212551
oct123432671275
931845474531
1011214222013
114835154a85
12220b753991
131099421137
14785515861
154597a76ad
hex29c6b72bd

11214222013 has 4 divisors (see below), whose sum is σ = 11216094880. Its totient is φ = 11212349148.

The previous prime is 11214222011. The next prime is 11214222031. The reversal of 11214222013 is 31022241211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31022241211 = 132386326247.

It is a cyclic number.

It is not a de Polignac number, because 11214222013 - 21 = 11214222011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11214222011) 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, 927423 + ... + 939436.

It is an arithmetic number, because the mean of its divisors is an integer number (2804023720).

Almost surely, 211214222013 is an apocalyptic number.

It is an amenable number.

11214222013 is a deficient number, since it is larger than the sum of its proper divisors (1872867).

11214222013 is an equidigital number, since it uses as much as digits as its factorization.

11214222013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1872866.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 11214222013 its reverse (31022241211), we get a palindrome (42236463224).

The spelling of 11214222013 in words is "eleven billion, two hundred fourteen million, two hundred twenty-two thousand, thirteen".

Divisors: 1 6007 1866859 11214222013