Search a number
-
+
313001101021 = 7192123862723
BaseRepresentation
bin1001000111000000101…
…00011100011011011101
31002220220120210101112011
410203200110130123131
520112011240213041
6355442443511221
731420313314060
oct4434024343335
91086816711464
10313001101021
11110819a63994
12507b3528511
13236924c77ab
1411213ab68d7
15821dc7be81
hex48e051c6dd

313001101021 has 12 divisors (see below), whose sum is σ = 377533582752. Its totient is φ = 254166305544.

The previous prime is 313001101009. The next prime is 313001101043. The reversal of 313001101021 is 120101100313.

It is not a de Polignac number, because 313001101021 - 29 = 313001100509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313001100992 and 313001101010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313001101081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61928835 + ... + 61933888.

It is an arithmetic number, because the mean of its divisors is an integer number (31461131896).

Almost surely, 2313001101021 is an apocalyptic number.

It is an amenable number.

313001101021 is a deficient number, since it is larger than the sum of its proper divisors (64532481731).

313001101021 is a wasteful number, since it uses less digits than its factorization.

313001101021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123862768 (or 123862749 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 313001101021 its reverse (120101100313), we get a palindrome (433102201334).

The spelling of 313001101021 in words is "three hundred thirteen billion, one million, one hundred one thousand, twenty-one".

Divisors: 1 7 19 133 361 2527 123862723 867039061 2353391737 16473742159 44714443003 313001101021