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13705383168 = 28331982839
BaseRepresentation
bin11001100001110011…
…11000110100000000
31022101011002121021000
430300321320310000
5211032034230133
610143545532000
7663426556221
oct146071706400
938334077230
1013705383168
1158a3371254
1227a5aa4000
1313a55773a9
14940305248
15553339413
hex330e78d00

13705383168 has 72 divisors (see below), whose sum is σ = 40529249600. Its totient is φ = 4568458752.

The previous prime is 13705383161. The next prime is 13705383277. The reversal of 13705383168 is 86138350731.

13705383168 is a `hidden beast` number, since 13 + 70 + 538 + 31 + 6 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13705383161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 984508 + ... + 998331.

Almost surely, 213705383168 is an apocalyptic number.

13705383168 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13705383168 is an abundant number, since it is smaller than the sum of its proper divisors (26823866432).

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

13705383168 is an equidigital number, since it uses as much as digits as its factorization.

13705383168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1982864 (or 1982844 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 13705383168 in words is "thirteen billion, seven hundred five million, three hundred eighty-three thousand, one hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 96 108 128 144 192 216 256 288 384 432 576 768 864 1152 1728 2304 3456 6912 1982839 3965678 5948517 7931356 11897034 15862712 17845551 23794068 31725424 35691102 47588136 53536653 63450848 71382204 95176272 107073306 126901696 142764408 190352544 214146612 253803392 285528816 380705088 428293224 507606784 571057632 761410176 856586448 1142115264 1522820352 1713172896 2284230528 3426345792 4568461056 6852691584 13705383168