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13660488832 = 27731461953
BaseRepresentation
bin11001011100011101…
…01000010010000000
31022021000121201210211
430232032220102000
5210434041120312
610135303403504
7662343145024
oct145616502200
938230551724
1013660488832
11587aa984a1
122792a53594
131399188bb3
1493837a384
1554e41c3a7
hex32e3a8480

13660488832 has 32 divisors (see below), whose sum is σ = 27587071980. Its totient is φ = 6736674816.

The previous prime is 13660488827. The next prime is 13660488833. The reversal of 13660488832 is 23888406631.

It can be written as a sum of positive squares in 2 ways, for example, as 13184550976 + 475937856 = 114824^2 + 21816^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (13660488833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 721633 + ... + 740320.

Almost surely, 213660488832 is an apocalyptic number.

It is an amenable number.

13660488832 is an abundant number, since it is smaller than the sum of its proper divisors (13926583148).

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

13660488832 is an equidigital number, since it uses as much as digits as its factorization.

13660488832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1462040 (or 1462028 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 49.

The spelling of 13660488832 in words is "thirteen billion, six hundred sixty million, four hundred eighty-eight thousand, eight hundred thirty-two".

Divisors: 1 2 4 8 16 32 64 73 128 146 292 584 1168 2336 4672 9344 1461953 2923906 5847812 11695624 23391248 46782496 93564992 106722569 187129984 213445138 426890276 853780552 1707561104 3415122208 6830244416 13660488832