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23012210320 = 2451146215659
BaseRepresentation
bin10101011011101000…
…100111011010010000
32012101202112101222221
4111123220213122100
5334112111212240
614323251310424
71443156363121
oct253350473220
965352471887
1023012210320
11983987a240
1245628ab414
132229775ac8
14118438a048
158ea422a4a
hex55ba27690

23012210320 has 80 divisors (see below), whose sum is σ = 58390280640. Its totient is φ = 8364787200.

The previous prime is 23012210303. The next prime is 23012210321. The reversal of 23012210320 is 2301221032.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 23012210294 and 23012210303.

It is not an unprimeable number, because it can be changed into a prime (23012210321) 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 15 ways as a sum of consecutive naturals, for example, 4063651 + ... + 4069309.

It is an arithmetic number, because the mean of its divisors is an integer number (729878508).

Almost surely, 223012210320 is an apocalyptic number.

23012210320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23012210320 is an abundant number, since it is smaller than the sum of its proper divisors (35378070320).

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

23012210320 is a wasteful number, since it uses less digits than its factorization.

23012210320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10304 (or 10298 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 23012210320 its reverse (2301221032), we get a palindrome (25313431352).

It can be divided in two parts, 23012 and 210320, that added together give a palindrome (233332).

The spelling of 23012210320 in words is "twenty-three billion, twelve million, two hundred ten thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 11 16 20 22 40 44 55 80 88 110 176 220 440 880 4621 5659 9242 11318 18484 22636 23105 28295 36968 45272 46210 50831 56590 62249 73936 90544 92420 101662 113180 124498 184840 203324 226360 248996 254155 311245 369680 406648 452720 497992 508310 622490 813296 995984 1016620 1244980 2033240 2489960 4066480 4979920 26150239 52300478 104600956 130751195 209201912 261502390 287652629 418403824 523004780 575305258 1046009560 1150610516 1438263145 2092019120 2301221032 2876526290 4602442064 5753052580 11506105160 23012210320