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11145501031 = 72212371971
BaseRepresentation
bin10100110000101001…
…01101100101100111
31001202202020010010111
422120110231211213
5140311222013111
65041542433451
7543124124050
oct123024554547
931682203114
1011145501031
1147aa387985
1221b0732887
13108810c832
1477a347727
15453730a21
hex29852d967

11145501031 has 8 divisors (see below), whose sum is σ = 12738468224. Its totient is φ = 9552722040.

The previous prime is 11145501011. The next prime is 11145501047. The reversal of 11145501031 is 13010554111.

11145501031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11145501031 - 25 = 11145500999 is a prime.

It is a super-2 number, since 2×111455010312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11145500993 and 11145501011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11145501011) 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, 118876 + ... + 190846.

It is an arithmetic number, because the mean of its divisors is an integer number (1592308528).

Almost surely, 211145501031 is an apocalyptic number.

11145501031 is a deficient number, since it is larger than the sum of its proper divisors (1592967193).

11145501031 is an equidigital number, since it uses as much as digits as its factorization.

11145501031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94101.

The product of its (nonzero) digits is 300, while the sum is 22.

The spelling of 11145501031 in words is "eleven billion, one hundred forty-five million, five hundred one thousand, thirty-one".

Divisors: 1 7 22123 71971 154861 503797 1592214433 11145501031