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13664326260 = 22351317518367
BaseRepresentation
bin11001011100111010…
…10001001001110100
31022021021211200202210
430232131101021310
5210441031420020
610135521533420
7662420566614
oct145635211164
938237750683
1013664326260
115882179622
1227941a4270
131399c00770
14938a98a44
1554e9293e0
hex32e751274

13664326260 has 48 divisors (see below), whose sum is σ = 41203201536. Its totient is φ = 3363526272.

The previous prime is 13664326253. The next prime is 13664326267. The reversal of 13664326260 is 6262346631.

13664326260 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13664326253) and next prime (13664326267).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13664326267) 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, 8758404 + ... + 8759963.

It is an arithmetic number, because the mean of its divisors is an integer number (858400032).

Almost surely, 213664326260 is an apocalyptic number.

13664326260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13664326260 is an abundant number, since it is smaller than the sum of its proper divisors (27538875276).

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

13664326260 is a wasteful number, since it uses less digits than its factorization.

13664326260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17518392 (or 17518390 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 39.

The spelling of 13664326260 in words is "thirteen billion, six hundred sixty-four million, three hundred twenty-six thousand, two hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 260 390 780 17518367 35036734 52555101 70073468 87591835 105110202 175183670 210220404 227738771 262775505 350367340 455477542 525551010 683216313 910955084 1051102020 1138693855 1366432626 2277387710 2732865252 3416081565 4554775420 6832163130 13664326260