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12232402320 = 2435108746889
BaseRepresentation
bin10110110010001101…
…11010010110010000
31011120111102102101210
423121012322112100
5200022443333240
65341450500120
7612062463345
oct133106722620
934514372353
1012232402320
115207965a06
122454734640
1311cc3553a8
148408367cc
154b8d7a780
hex2d91ba590

12232402320 has 80 divisors (see below), whose sum is σ = 37956142080. Its totient is φ = 3258903552.

The previous prime is 12232402283. The next prime is 12232402321. The reversal of 12232402320 is 2320423221.

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

It is not an unprimeable number, because it can be changed into a prime (12232402321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237436 + ... + 284324.

It is an arithmetic number, because the mean of its divisors is an integer number (474451776).

Almost surely, 212232402320 is an apocalyptic number.

12232402320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12232402320 is an abundant number, since it is smaller than the sum of its proper divisors (25723739760).

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

12232402320 is a wasteful number, since it uses less digits than its factorization.

12232402320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47992 (or 47986 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 12232402320 its reverse (2320423221), we get a palindrome (14552825541).

The spelling of 12232402320 in words is "twelve billion, two hundred thirty-two million, four hundred two thousand, three hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 1087 2174 3261 4348 5435 6522 8696 10870 13044 16305 17392 21740 26088 32610 43480 46889 52176 65220 86960 93778 130440 140667 187556 234445 260880 281334 375112 468890 562668 703335 750224 937780 1125336 1406670 1875560 2250672 2813340 3751120 5626680 11253360 50968343 101936686 152905029 203873372 254841715 305810058 407746744 509683430 611620116 764525145 815493488 1019366860 1223240232 1529050290 2038733720 2446480464 3058100580 4077467440 6116201160 12232402320