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13723660318 = 261432725997
BaseRepresentation
bin11001100011111111…
…00111000000011110
31022102102111011210111
430301333213000132
5211101224112233
610145441400234
7664041121324
oct146177470036
938372434714
1013723660318
115902715135
1227b003907a
1313a92a6584
14942901d14
15554c49acd
hex331fe701e

13723660318 has 16 divisors (see below), whose sum is σ = 20928597984. Its totient is φ = 6747521760.

The previous prime is 13723660303. The next prime is 13723660337. The reversal of 13723660318 is 81306632731.

It is a super-2 number, since 2×137236603182 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 514896 + ... + 540892.

It is an arithmetic number, because the mean of its divisors is an integer number (1308037374).

Almost surely, 213723660318 is an apocalyptic number.

13723660318 is a deficient number, since it is larger than the sum of its proper divisors (7204937666).

13723660318 is a wasteful number, since it uses less digits than its factorization.

13723660318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30387.

The product of its (nonzero) digits is 108864, while the sum is 40.

It can be divided in two parts, 13723 and 660318, that added together give a square (674041 = 8212).

The spelling of 13723660318 in words is "thirteen billion, seven hundred twenty-three million, six hundred sixty thousand, three hundred eighteen".

Divisors: 1 2 61 122 4327 8654 25997 51994 263947 527894 1585817 3171634 112489019 224978038 6861830159 13723660318