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11111010038 = 2191021286381
BaseRepresentation
bin10100101100100010…
…01000111011110110
31001200100022210101022
422112101020323312
5140223404310123
65034311301142
7542225012162
oct122621107366
931610283338
1011111010038
11479196a327
1221a107a7b2
131080c2466b
14775929ca2
154506bb1c8
hex296448ef6

11111010038 has 16 divisors (see below), whose sum is σ = 17560944240. Its totient is φ = 5257936800.

The previous prime is 11111010037. The next prime is 11111010061. The reversal of 11111010038 is 83001011111.

It is a happy number.

11111010038 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×111110100382 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11111009998 and 11111010025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111010037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104393 + ... + 181988.

It is an arithmetic number, because the mean of its divisors is an integer number (1097559015).

Almost surely, 211111010038 is an apocalyptic number.

11111010038 is a deficient number, since it is larger than the sum of its proper divisors (6449934202).

11111010038 is a wasteful number, since it uses less digits than its factorization.

11111010038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287423.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 11111010038 its reverse (83001011111), we get a palindrome (94112021149).

The spelling of 11111010038 in words is "eleven billion, one hundred eleven million, ten thousand, thirty-eight".

Divisors: 1 2 19 38 1021 2042 19399 38798 286381 572762 5441239 10882478 292395001 584790002 5555505019 11111010038