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23413512215555 = 5711219728063829
BaseRepresentation
bin1010101001011011000100…
…00101000001110000000011
310001220022100220220211012122
411110231202011001300003
511032101333111344210
6121444004035314455
74634366442066320
oct524554205016003
9101808326824178
1023413512215555
117507684290700
122761841a4ba2b
13100ab66994b97
145ad311ad7b47
152a908c3a2b55
hex154b62141c03

23413512215555 has 48 divisors (see below), whose sum is σ = 35473579162560. Its totient is φ = 14521347160320.

The previous prime is 23413512215551. The next prime is 23413512215557. The reversal of 23413512215555 is 55551221531432.

It is not a de Polignac number, because 23413512215555 - 22 = 23413512215551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23413512215551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13197620 + ... + 14866209.

It is an arithmetic number, because the mean of its divisors is an integer number (739032899220).

Almost surely, 223413512215555 is an apocalyptic number.

23413512215555 is a deficient number, since it is larger than the sum of its proper divisors (12060066947005).

23413512215555 is a wasteful number, since it uses less digits than its factorization.

23413512215555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28064060 (or 28064049 counting only the distinct ones).

The product of its digits is 900000, while the sum is 44.

Adding to 23413512215555 its reverse (55551221531432), we get a palindrome (78964733746987).

The spelling of 23413512215555 in words is "twenty-three trillion, four hundred thirteen billion, five hundred twelve million, two hundred fifteen thousand, five hundred fifty-five".

Divisors: 1 5 7 11 35 55 77 121 197 385 605 847 985 1379 2167 4235 6895 10835 15169 23837 75845 119185 166859 834295 28063829 140319145 196446803 308702119 982234015 1543510595 2160914833 3395723309 5528574313 10804574165 16978616545 23770063163 27642871565 38700020191 60814317443 118850315815 193500100955 304071587215 425700222101 668957491873 2128501110505 3344787459365 4682702443111 23413512215555