Search a number
-
+
115551051031 = 1331328397899
BaseRepresentation
bin110101110011101100…
…0010001110100010111
3102001020221200120211201
41223213120101310113
53343122032113111
6125030004013331
711230314504463
oct1534730216427
9361227616751
10115551051031
1145006612999
121a489991247
13ab865764a0
1458425294a3
1530145ed6c1
hex1ae7611d17

115551051031 has 8 divisors (see below), whose sum is σ = 124837168400. Its totient is φ = 106321730112.

The previous prime is 115551051001. The next prime is 115551051151. The reversal of 115551051031 is 130150155511.

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

It is not a de Polignac number, because 115551051031 - 217 = 115550919959 is a prime.

It is a super-2 number, since 2×1155510510312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115551051001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14194881 + ... + 14203018.

It is an arithmetic number, because the mean of its divisors is an integer number (15604646050).

Almost surely, 2115551051031 is an apocalyptic number.

115551051031 is a deficient number, since it is larger than the sum of its proper divisors (9286117369).

115551051031 is a wasteful number, since it uses less digits than its factorization.

115551051031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28398225.

The product of its (nonzero) digits is 1875, while the sum is 28.

The spelling of 115551051031 in words is "one hundred fifteen billion, five hundred fifty-one million, fifty-one thousand, thirty-one".

Divisors: 1 13 313 4069 28397899 369172687 8888542387 115551051031