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21102210402301 = 73173797809983
BaseRepresentation
bin1001100110001001111011…
…10000010100011111111101
32202201100111022210100022101
410303010331300110133331
510231214311330333201
6112514115512145101
74305404305612000
oct463047560243775
982640438710271
1021102210402301
1167a6440702a96
1224498bb698191
13ba0c11cc3362
1452d4d110d537
15268db490ad01
hex13313dc147fd

21102210402301 has 32 divisors (see below), whose sum is σ = 26760811622400. Its totient is φ = 16563533591808.

The previous prime is 21102210402283. The next prime is 21102210402323. The reversal of 21102210402301 is 10320401220112.

It is not a de Polignac number, because 21102210402301 - 27 = 21102210402173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21102210402391) 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, 48689245 + ... + 49120738.

It is an arithmetic number, because the mean of its divisors is an integer number (836275363200).

Almost surely, 221102210402301 is an apocalyptic number.

It is an amenable number.

21102210402301 is a deficient number, since it is larger than the sum of its proper divisors (5658601220099).

21102210402301 is an equidigital number, since it uses as much as digits as its factorization.

21102210402301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97810058 (or 97810044 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 21102210402301 its reverse (10320401220112), we get a palindrome (31422611622413).

The spelling of 21102210402301 in words is "twenty-one trillion, one hundred two billion, two hundred ten million, four hundred two thousand, three hundred one".

Divisors: 1 7 17 37 49 119 259 343 629 833 1813 4403 5831 12691 30821 215747 97809983 684669881 1662769711 3618969371 4792689167 11639387977 25332785597 33548824169 61522479307 81475715839 177329499179 430657355149 570330010873 1241306494253 3014601486043 21102210402301