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32660641 = 1329412113
BaseRepresentation
bin111110010010…
…1110010100001
32021110022222101
41330211302201
531330120031
63124010401
7544416346
oct174456241
967408871
1032660641
1117488472
12ab30a01
1369c7030
1444a27cd
152d02361
hex1f25ca1

32660641 has 16 divisors (see below), whose sum is σ = 37290960. Its totient is φ = 28385280.

The previous prime is 32660633. The next prime is 32660653. The reversal of 32660641 is 14606623.

It can be written as a sum of positive squares in 8 ways, for example, as 18190225 + 14470416 = 4265^2 + 3804^2 .

It is a cyclic number.

It is not a de Polignac number, because 32660641 - 23 = 32660633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32660041) 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 15 ways as a sum of consecutive naturals, for example, 14401 + ... + 16513.

It is an arithmetic number, because the mean of its divisors is an integer number (2330685).

Almost surely, 232660641 is an apocalyptic number.

It is an amenable number.

32660641 is a deficient number, since it is larger than the sum of its proper divisors (4630319).

32660641 is a wasteful number, since it uses less digits than its factorization.

32660641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2196.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 32660641 is about 5714.9489061583. The cubic root of 32660641 is about 319.6501417254.

The spelling of 32660641 in words is "thirty-two million, six hundred sixty thousand, six hundred forty-one".

Divisors: 1 13 29 41 377 533 1189 2113 15457 27469 61277 86633 796601 1126229 2512357 32660641