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102030313013 = 257397005109
BaseRepresentation
bin101111100000101111…
…0110000011000110101
3100202100200000221002222
41133001132300120311
53132424230004023
6114512211412125
710241256231266
oct1370136603065
9322320027088
10102030313013
113a2a84a7342
12179358b4045
13981033b3a5
144d1c96a96d
1529c25d8cc8
hex17c17b0635

102030313013 has 4 divisors (see below), whose sum is σ = 102427318380. Its totient is φ = 101633307648.

The previous prime is 102030313003. The next prime is 102030313037. The reversal of 102030313013 is 310313030201.

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 101383017649 + 647295364 = 318407^2 + 25442^2 .

It is a cyclic number.

It is not a de Polignac number, because 102030313013 - 210 = 102030311989 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 = 102030312982 and 102030313000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102030313003) 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, 198502298 + ... + 198502811.

It is an arithmetic number, because the mean of its divisors is an integer number (25606829595).

Almost surely, 2102030313013 is an apocalyptic number.

It is an amenable number.

102030313013 is a deficient number, since it is larger than the sum of its proper divisors (397005367).

102030313013 is an equidigital number, since it uses as much as digits as its factorization.

102030313013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397005366.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 102030313013 its reverse (310313030201), we get a palindrome (412343343214).

The spelling of 102030313013 in words is "one hundred two billion, thirty million, three hundred thirteen thousand, thirteen".

Divisors: 1 257 397005109 102030313013