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30202013203021 = 1122367400740423
BaseRepresentation
bin1101101110111111101000…
…10001001011101001001101
310221221021200020011202100101
412313133310101023221031
512424312210334444041
6144122340251131101
76235011020314612
oct667376421135115
9127837606152311
1030202013203021
1196946690a7500
123479429143a91
1313b10648791ca
14765adc9a2509
15375954d6cb31
hex1b77f444ba4d

30202013203021 has 48 divisors (see below), whose sum is σ = 35167281149952. Its totient is φ = 25863544571040.

The previous prime is 30202013203013. The next prime is 30202013203081. The reversal of 30202013203021 is 12030231020203.

It is not a de Polignac number, because 30202013203021 - 23 = 30202013203013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30202013203021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30202013203081) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 747129016 + ... + 747169438.

It is an arithmetic number, because the mean of its divisors is an integer number (732651690624).

Almost surely, 230202013203021 is an apocalyptic number.

It is an amenable number.

30202013203021 is a deficient number, since it is larger than the sum of its proper divisors (4965267946931).

30202013203021 is a wasteful number, since it uses less digits than its factorization.

30202013203021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44542 (or 44531 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 30202013203021 its reverse (12030231020203), we get a palindrome (42232244223224).

The spelling of 30202013203021 in words is "thirty trillion, two hundred two billion, thirteen million, two hundred three thousand, twenty-one".

Divisors: 1 11 23 67 121 253 737 1541 2783 4007 8107 16951 40423 44077 92161 186461 268469 444653 484847 929729 1013771 2708341 2953159 4891183 6174787 10227019 11151481 29791751 32484749 62291843 67922657 112497209 161974961 327709261 685210273 747149227 1781724571 3725424103 7537313003 10852322387 19598970281 40979665133 119375546257 249603414901 450776316463 1313131008827 2745637563911 30202013203021