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20310013033 = 1729199241859
BaseRepresentation
bin10010111010100100…
…100011010001101001
31221102102212120011221
4102322210203101221
5313043330404113
613155202022041
71316205155662
oct227244432151
957372776157
1020310013033
118682522442
123b29947921
131bb89a01bb
14da9544369
157dd0a698d
hex4ba923469

20310013033 has 32 divisors (see below), whose sum is σ = 22476960000. Its totient is φ = 18265927680.

The previous prime is 20310013019. The next prime is 20310013049. The reversal of 20310013033 is 33031001302.

It is a cyclic number.

It is not a de Polignac number, because 20310013033 - 29 = 20310012521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20310012998 and 20310013016.

It is not an unprimeable number, because it can be changed into a prime (20310013433) 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, 23643358 + ... + 23644216.

It is an arithmetic number, because the mean of its divisors is an integer number (702405000).

Almost surely, 220310013033 is an apocalyptic number.

It is an amenable number.

20310013033 is a deficient number, since it is larger than the sum of its proper divisors (2166946967).

20310013033 is a wasteful number, since it uses less digits than its factorization.

20310013033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345.

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

Adding to 20310013033 its reverse (33031001302), we get a palindrome (53341014335).

The spelling of 20310013033 in words is "twenty billion, three hundred ten million, thirteen thousand, thirty-three".

Divisors: 1 17 29 199 241 493 859 3383 4097 5771 6989 14603 24911 47959 98107 118813 170941 207019 423487 815303 1390811 2905997 3519323 4957289 6003551 23643787 41196781 84273913 102060367 700345277 1194706649 20310013033