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11222445685 = 511218549497
BaseRepresentation
bin10100111001110100…
…01110111001110101
31001222010000022100111
422130322032321311
5140440421230220
65053331543021
7545050133353
oct123472167165
931863008314
1011222445685
114839861600
12221245aa71
13109b040309
147866567d3
1545a37e15a
hex29ce8ee75

11222445685 has 12 divisors (see below), whose sum is σ = 14802499404. Its totient is φ = 8161778240.

The previous prime is 11222445679. The next prime is 11222445719. The reversal of 11222445685 is 58654422211.

It can be written as a sum of positive squares in 2 ways, for example, as 4885171236 + 6337274449 = 69894^2 + 79607^2 .

It is not a de Polignac number, because 11222445685 - 213 = 11222437493 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9274144 + ... + 9275353.

It is an arithmetic number, because the mean of its divisors is an integer number (1233541617).

Almost surely, 211222445685 is an apocalyptic number.

It is an amenable number.

11222445685 is a deficient number, since it is larger than the sum of its proper divisors (3580053719).

11222445685 is a wasteful number, since it uses less digits than its factorization.

11222445685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18549524 (or 18549513 counting only the distinct ones).

The product of its digits is 153600, while the sum is 40.

Adding to 11222445685 its reverse (58654422211), we get a palindrome (69876867896).

The spelling of 11222445685 in words is "eleven billion, two hundred twenty-two million, four hundred forty-five thousand, six hundred eighty-five".

Divisors: 1 5 11 55 121 605 18549497 92747485 204044467 1020222335 2244489137 11222445685