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13214400312 = 2332389268979
BaseRepresentation
bin11000100111010001…
…11011111100111000
31021002221020002101210
430103220323330320
5204030341302222
610023130243120
7645315356301
oct142350737470
937087202353
1013214400312
1156712035a3
1226895864a0
13132792b6a9
148d50197a8
155251a2d0c
hex313a3bf38

13214400312 has 64 divisors (see below), whose sum is σ = 34859808000. Its totient is φ = 4165931264.

The previous prime is 13214400301. The next prime is 13214400317. The reversal of 13214400312 is 21300441231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13214400317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85362 + ... + 183617.

It is an arithmetic number, because the mean of its divisors is an integer number (544684500).

Almost surely, 213214400312 is an apocalyptic number.

13214400312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13214400312 is an abundant number, since it is smaller than the sum of its proper divisors (21645407688).

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

13214400312 is a wasteful number, since it uses less digits than its factorization.

13214400312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269100 (or 269096 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 13214400312 its reverse (21300441231), we get a palindrome (34514841543).

The spelling of 13214400312 in words is "thirteen billion, two hundred fourteen million, four hundred thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 23 24 46 69 89 92 138 178 184 267 276 356 534 552 712 1068 2047 2136 4094 6141 8188 12282 16376 24564 49128 268979 537958 806937 1075916 1613874 2151832 3227748 6186517 6455496 12373034 18559551 23939131 24746068 37119102 47878262 49492136 71817393 74238204 95756524 143634786 148476408 191513048 287269572 550600013 574539144 1101200026 1651800039 2202400052 3303600078 4404800104 6607200156 13214400312