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22130300031 = 3797181193311
BaseRepresentation
bin10100100111000100…
…011001010001111111
32010010022001201111220
4110213010121101333
5330310324100111
614055545044423
71412260306110
oct244704312177
963108051456
1022130300031
119426a82a64
124357486713
132118b441b8
1410dd1bc207
15897cbae06
hex52711947f

22130300031 has 64 divisors (see below), whose sum is σ = 34546477056. Its totient is φ = 12342067200.

The previous prime is 22130299979. The next prime is 22130300033. The reversal of 22130300031 is 13000303122.

It is not a de Polignac number, because 22130300031 - 27 = 22130299903 is a prime.

It is a super-2 number, since 2×221303000312 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22130300033) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 71158366 + ... + 71158676.

It is an arithmetic number, because the mean of its divisors is an integer number (539788704).

Almost surely, 222130300031 is an apocalyptic number.

22130300031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22130300031 is a deficient number, since it is larger than the sum of its proper divisors (12416177025).

22130300031 is a wasteful number, since it uses less digits than its factorization.

22130300031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 22130300031 its reverse (13000303122), we get a palindrome (35130603153).

The spelling of 22130300031 in words is "twenty-two billion, one hundred thirty million, three hundred thousand, thirty-one".

Divisors: 1 3 7 21 97 181 193 291 311 543 579 679 933 1267 1351 2037 2177 3801 4053 6531 17557 18721 30167 34933 52671 56163 56291 60023 90501 104799 122899 131047 168873 180069 211169 244531 368697 393141 394037 420161 633507 733593 1182111 1260483 3388501 5460227 5822231 10165503 10864163 16380681 17466693 23719507 32592489 38221589 40755617 71158521 76049141 114664767 122266851 228147423 1053823811 3161471433 7376766677 22130300031