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20330131003 = 71317101312973
BaseRepresentation
bin10010111011110001…
…010010111000111011
31221110211201122211221
4102323301102320323
5313114003143003
613201201132511
71316541155650
oct227361227073
957424648757
1020330131003
118692913366
123b3462a137
131bbcbc5220
14dac09dc27
157dec2c7bd
hex4bbc52e3b

20330131003 has 32 divisors (see below), whose sum is σ = 26521762176. Its totient is φ = 15123068928.

The previous prime is 20330130941. The next prime is 20330131021. The reversal of 20330131003 is 30013103302.

It is a cyclic number.

It is not a de Polignac number, because 20330131003 - 213 = 20330122811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20330131033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1560625 + ... + 1573597.

It is an arithmetic number, because the mean of its divisors is an integer number (828805068).

Almost surely, 220330131003 is an apocalyptic number.

20330131003 is a deficient number, since it is larger than the sum of its proper divisors (6191631173).

20330131003 is a wasteful number, since it uses less digits than its factorization.

20330131003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14023.

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 20330131003 its reverse (30013103302), we get a palindrome (50343234305).

The spelling of 20330131003 in words is "twenty billion, three hundred thirty million, one hundred thirty-one thousand, three".

Divisors: 1 7 13 17 91 119 221 1013 1547 7091 12973 13169 17221 90811 92183 120547 168649 220541 223873 1180543 1543787 1567111 2867033 13141649 20069231 91991543 170841437 223408033 1195890059 1563856231 2904304429 20330131003