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13389764881848 = 2331783395398207
BaseRepresentation
bin1100001011011000110000…
…1011011110110110111000
31202102001022201220000200020
43002312030023132312320
53223334214302204343
644251101214410440
72551243566416655
oct302661413366670
952361281800606
1013389764881848
1142a2627229363
121603039200a20
137618599a7514
143440d4b40c2c
1518347272cb83
hexc2d8c2dedb8

13389764881848 has 64 divisors (see below), whose sum is σ = 35870525429760. Its totient is φ = 4150099570176.

The previous prime is 13389764881819. The next prime is 13389764881849. The reversal of 13389764881848 is 84818846798331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13389764881849) by changing a digit.

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, 197665240 + ... + 197732967.

It is an arithmetic number, because the mean of its divisors is an integer number (560476959840).

Almost surely, 213389764881848 is an apocalyptic number.

It is an amenable number.

13389764881848 is an abundant number, since it is smaller than the sum of its proper divisors (22480760547912).

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

13389764881848 is a wasteful number, since it uses less digits than its factorization.

13389764881848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395398316 (or 395398312 counting only the distinct ones).

The product of its digits is 1783627776, while the sum is 78.

The spelling of 13389764881848 in words is "thirteen trillion, three hundred eighty-nine billion, seven hundred sixty-four million, eight hundred eighty-one thousand, eight hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 83 102 136 166 204 249 332 408 498 664 996 1411 1992 2822 4233 5644 8466 11288 16932 33864 395398207 790796414 1186194621 1581592828 2372389242 3163185656 4744778484 6721769519 9489556968 13443539038 20165308557 26887078076 32818051181 40330617114 53774156152 65636102362 80661234228 98454153543 131272204724 161322468456 196908307086 262544409448 393816614172 557906870077 787633228344 1115813740154 1673720610231 2231627480308 3347441220462 4463254960616 6694882440924 13389764881848