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13660322160 = 243556918009
BaseRepresentation
bin11001011100011011…
…11111100101110000
31022021000022021011210
430232031333211300
5210434020302120
610135300040120
7662341552062
oct145615774560
938230267153
1013660322160
11587a994251
122792993040
13139912b084
14938335732
1554e3d7ce0
hex32e37f970

13660322160 has 40 divisors (see below), whose sum is σ = 42346999440. Its totient is φ = 3642752512.

The previous prime is 13660322153. The next prime is 13660322177. The reversal of 13660322160 is 6122306631.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28458765 + ... + 28459244.

It is an arithmetic number, because the mean of its divisors is an integer number (1058674986).

Almost surely, 213660322160 is an apocalyptic number.

13660322160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13660322160 is an abundant number, since it is smaller than the sum of its proper divisors (28686677280).

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

13660322160 is a wasteful number, since it uses less digits than its factorization.

13660322160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56918025 (or 56918019 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

Adding to 13660322160 its reverse (6122306631), we get a palindrome (19782628791).

The spelling of 13660322160 in words is "thirteen billion, six hundred sixty million, three hundred twenty-two thousand, one hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 56918009 113836018 170754027 227672036 284590045 341508054 455344072 569180090 683016108 853770135 910688144 1138360180 1366032216 1707540270 2276720360 2732064432 3415080540 4553440720 6830161080 13660322160