Search a number
-
+
313131000201 = 3104377000067
BaseRepresentation
bin1001000111010000000…
…11111110000110001001
31002221020122012221200220
410203220003332012021
520112243014001301
6355503404020253
731423451404635
oct4435003760611
91087218187626
10313131000201
11110886317088
125082ab31689
13236b33a9406
141122704bdc5
15822a38a936
hex48e80fe189

313131000201 has 4 divisors (see below), whose sum is σ = 417508000272. Its totient is φ = 208754000132.

The previous prime is 313131000191. The next prime is 313131000209. The reversal of 313131000201 is 102000131313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 102000131313 = 334000043771.

It is a cyclic number.

It is not a de Polignac number, because 313131000201 - 27 = 313131000073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (313131000209) 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 3 ways as a sum of consecutive naturals, for example, 52188500031 + ... + 52188500036.

It is an arithmetic number, because the mean of its divisors is an integer number (104377000068).

Almost surely, 2313131000201 is an apocalyptic number.

It is an amenable number.

313131000201 is a deficient number, since it is larger than the sum of its proper divisors (104377000071).

313131000201 is a wasteful number, since it uses less digits than its factorization.

313131000201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104377000070.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 313131000201 its reverse (102000131313), we get a palindrome (415131131514).

The spelling of 313131000201 in words is "three hundred thirteen billion, one hundred thirty-one million, two hundred one", and thus it is an aban number.

Divisors: 1 3 104377000067 313131000201