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23102212120 = 2351323417487
BaseRepresentation
bin10101100000111111…
…111100100000011000
32012122000212222020221
4111200333330200120
5334303131241440
614340224325424
71445331364051
oct254077744030
965560788227
1023102212120
119885661999
124588a73874
1322422c8800
1411922d7728
1590329ed4a
hex560ffc818

23102212120 has 48 divisors (see below), whose sum is σ = 56286027360. Its totient is φ = 8530045056.

The previous prime is 23102212097. The next prime is 23102212139. The reversal of 23102212120 is 2121220132.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 23102212094 and 23102212103.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1701984 + ... + 1715503.

It is an arithmetic number, because the mean of its divisors is an integer number (1172625570).

Almost surely, 223102212120 is an apocalyptic number.

23102212120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23102212120 is an abundant number, since it is smaller than the sum of its proper divisors (33183815240).

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

23102212120 is a wasteful number, since it uses less digits than its factorization.

23102212120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3417524 (or 3417507 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 23102212120 its reverse (2121220132), we get a palindrome (25223432252).

The spelling of 23102212120 in words is "twenty-three billion, one hundred two million, two hundred twelve thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 169 260 338 520 676 845 1352 1690 3380 6760 3417487 6834974 13669948 17087435 27339896 34174870 44427331 68349740 88854662 136699480 177709324 222136655 355418648 444273310 577555303 888546620 1155110606 1777093240 2310221212 2887776515 4620442424 5775553030 11551106060 23102212120