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131030000033 = 1011297326733
BaseRepresentation
bin111101000000111111…
…1110010000110100001
3110112012201001200001012
41322001333302012201
54121322140000113
6140105551350305
712316021423622
oct1720177620641
9415181050035
10131030000033
115062a023429
1221489822395
13c4823b69ca
1464b01c5a49
15361d4bdaa8
hex1e81ff21a1

131030000033 has 4 divisors (see below), whose sum is σ = 132327326868. Its totient is φ = 129732673200.

The previous prime is 131030000021. The next prime is 131030000047. The reversal of 131030000033 is 330000030131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 80138249569 + 50891750464 = 283087^2 + 225592^2 .

It is a cyclic number.

It is not a de Polignac number, because 131030000033 - 232 = 126735032737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 131029999972 and 131030000017.

It is not an unprimeable number, because it can be changed into a prime (131030000063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 648663266 + ... + 648663467.

It is an arithmetic number, because the mean of its divisors is an integer number (33081831717).

Almost surely, 2131030000033 is an apocalyptic number.

It is an amenable number.

131030000033 is a deficient number, since it is larger than the sum of its proper divisors (1297326835).

131030000033 is a wasteful number, since it uses less digits than its factorization.

131030000033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1297326834.

The product of its (nonzero) digits is 81, while the sum is 14.

Adding to 131030000033 its reverse (330000030131), we get a palindrome (461030030164).

The spelling of 131030000033 in words is "one hundred thirty-one billion, thirty million, thirty-three", and thus it is an aban number.

Divisors: 1 101 1297326733 131030000033