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32131211031209 = 1731833771012829
BaseRepresentation
bin1110100111001001000010…
…11010110111001010101001
311012202201021100020121120202
413103210201122313022221
513202414210010444314
6152200512524001545
76524255235302663
oct723444132671251
9135681240217522
1032131211031209
11a268851a71704
12372b2b16902b5
1314c0c63732654
147d12320a7533
153aac170d40de
hex1d39216b72a9

32131211031209 has 8 divisors (see below), whose sum is σ = 32317148714760. Its totient is φ = 31945275740416.

The previous prime is 32131211031151. The next prime is 32131211031281. The reversal of 32131211031209 is 90213011213123.

It can be written as a sum of positive squares in 4 ways, for example, as 254290249984 + 31876920781225 = 504272^2 + 5645965^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 32131211031209 - 240 = 31031699403433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32131211031109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31217807 + ... + 32230635.

It is an arithmetic number, because the mean of its divisors is an integer number (4039643589345).

Almost surely, 232131211031209 is an apocalyptic number.

It is an amenable number.

32131211031209 is a deficient number, since it is larger than the sum of its proper divisors (185937683551).

32131211031209 is a wasteful number, since it uses less digits than its factorization.

32131211031209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196379.

The product of its (nonzero) digits is 1944, while the sum is 29.

The spelling of 32131211031209 in words is "thirty-two trillion, one hundred thirty-one billion, two hundred eleven million, thirty-one thousand, two hundred nine".

Divisors: 1 173 183377 1012829 31724221 175219417 185729543533 32131211031209