Search a number
-
+
31304023001 = 295879183611
BaseRepresentation
bin11101001001110111…
…010111101111011001
32222210122001010122022
4131021313113233121
51003102312214001
622214133504225
72155512543116
oct351167275731
988718033568
1031304023001
1112304339899
1260977a2075
132c4b5ab244
14172d6d590d
15c3336111b
hex749dd7bd9

31304023001 has 8 divisors (see below), whose sum is σ = 32389156800. Its totient is φ = 30219268240.

The previous prime is 31304022931. The next prime is 31304023013. The reversal of 31304023001 is 10032040313.

It is a happy number.

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 31304023001 - 210 = 31304021977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31304023031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78686 + ... + 262296.

It is an arithmetic number, because the mean of its divisors is an integer number (4048644600).

Almost surely, 231304023001 is an apocalyptic number.

It is an amenable number.

31304023001 is a deficient number, since it is larger than the sum of its proper divisors (1085133799).

31304023001 is a wasteful number, since it uses less digits than its factorization.

31304023001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189519.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 31304023001 its reverse (10032040313), we get a palindrome (41336063314).

The spelling of 31304023001 in words is "thirty-one billion, three hundred four million, twenty-three thousand, one".

Divisors: 1 29 5879 170491 183611 5324719 1079449069 31304023001