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213024414421 = 72131374675227
BaseRepresentation
bin1100011001100100111…
…1101001101011010101
3202100212001000111020201
43012121033221223111
511442233222230141
6241510112300501
721250641434500
oct3063117515325
9670761014221
10213024414421
1182385801565
1235351541731
131711b78b680
14a44bba4137
15581baea031
hex31993e9ad5

213024414421 has 48 divisors (see below), whose sum is σ = 269440831296. Its totient is φ = 166926299904.

The previous prime is 213024414413. The next prime is 213024414457. The reversal of 213024414421 is 124414420312.

It is not a de Polignac number, because 213024414421 - 23 = 213024414413 is a prime.

It is a super-2 number, since 2×2130244144212 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 213024414421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213024414461) 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, 40752010 + ... + 40757236.

It is an arithmetic number, because the mean of its divisors is an integer number (5613350652).

Almost surely, 2213024414421 is an apocalyptic number.

It is an amenable number.

213024414421 is a deficient number, since it is larger than the sum of its proper divisors (56416416875).

213024414421 is a wasteful number, since it uses less digits than its factorization.

213024414421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5858 (or 5851 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 213024414421 its reverse (124414420312), we get a palindrome (337438834733).

The spelling of 213024414421 in words is "two hundred thirteen billion, twenty-four million, four hundred fourteen thousand, four hundred twenty-one".

Divisors: 1 7 13 49 91 137 467 637 959 1781 3269 5227 6071 6713 12467 22883 36589 42497 63979 67951 87269 256123 297479 447853 475657 716099 831727 2441009 3134971 3329599 5012693 5822089 9309287 17087063 31733117 35088851 40754623 65165009 119609441 222131819 334418233 456155063 1554922733 2340927631 4347437029 16386493417 30432059203 213024414421