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23003212201220 = 22528322901177467
BaseRepresentation
bin1010011101011110110100…
…10010101011110100000100
310000110002022102001111210102
411032233122102223310010
511003341034310414340
6120531310234143232
74562633020364066
oct516573222536404
9100402272044712
1023003212201220
117369675660069
1226b6215281b18
13cab269464c04
1459750b9d7736
1529d5765d8215
hex14ebda4abd04

23003212201220 has 48 divisors (see below), whose sum is σ = 48479830838208. Its totient is φ = 9168319478400.

The previous prime is 23003212201187. The next prime is 23003212201231. The reversal of 23003212201220 is 2210221230032.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 23003212201192 and 23003212201201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129530927 + ... + 129708393.

It is an arithmetic number, because the mean of its divisors is an integer number (1009996475796).

Almost surely, 223003212201220 is an apocalyptic number.

23003212201220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23003212201220 is an abundant number, since it is smaller than the sum of its proper divisors (25476618636988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23003212201220 is a wasteful number, since it uses less digits than its factorization.

23003212201220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200660 (or 200658 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 23003212201220 its reverse (2210221230032), we get a palindrome (25213433431252).

The spelling of 23003212201220 in words is "twenty-three trillion, three billion, two hundred twelve million, two hundred one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 283 566 1132 1415 2830 5660 22901 45802 91604 114505 177467 229010 354934 458020 709868 887335 1774670 3549340 6480983 12961966 25923932 32404915 50223161 64809830 100446322 129619660 200892644 251115805 502231610 1004463220 4064171767 8128343534 16256687068 20320858835 40641717670 81283435340 1150160610061 2300321220122 4600642440244 5750803050305 11501606100610 23003212201220