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11111070160 = 245138888377
BaseRepresentation
bin10100101100100010…
…10111100111010000
31001200100102211212001
422112101113213100
5140223413221120
65034312443344
7542225352361
oct122621274720
931610384761
1011111070160
114791a00513
1221a10a9554
131080c45b38
14775943b68
154506cde0a
hex2964579d0

11111070160 has 20 divisors (see below), whose sum is σ = 25833238308. Its totient is φ = 4444428032.

The previous prime is 11111070143. The next prime is 11111070163. The reversal of 11111070160 is 6107011111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6712197184 + 4398872976 = 81928^2 + 66324^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111070163) 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, 69444109 + ... + 69444268.

Almost surely, 211111070160 is an apocalyptic number.

11111070160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11111070160 is an abundant number, since it is smaller than the sum of its proper divisors (14722168148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11111070160 is a wasteful number, since it uses less digits than its factorization.

11111070160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138888390 (or 138888384 counting only the distinct ones).

The product of its (nonzero) digits is 42, while the sum is 19.

Adding to 11111070160 its reverse (6107011111), we get a palindrome (17218081271).

The spelling of 11111070160 in words is "eleven billion, one hundred eleven million, seventy thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 40 80 138888377 277776754 555553508 694441885 1111107016 1388883770 2222214032 2777767540 5555535080 11111070160