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31210041001 = 4319311293331
BaseRepresentation
bin11101000100010000…
…110110111010101001
32222120002012100120111
4131010100312322221
51002404232303001
622200535254321
72153261654116
oct350420667251
988502170514
1031210041001
1112266288817
12607021a3a1
132c34c939a9
14172102d90d
15c29e99851
hex744436ea9

31210041001 has 16 divisors (see below), whose sum is σ = 32139405760. Its totient is φ = 30290319360.

The previous prime is 31210040993. The next prime is 31210041017. The reversal of 31210041001 is 10014001213.

It is a cyclic number.

It is not a de Polignac number, because 31210041001 - 23 = 31210040993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31210041301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9367906 + ... + 9371236.

It is an arithmetic number, because the mean of its divisors is an integer number (2008712860).

Almost surely, 231210041001 is an apocalyptic number.

It is an amenable number.

31210041001 is a deficient number, since it is larger than the sum of its proper divisors (929364759).

31210041001 is a wasteful number, since it uses less digits than its factorization.

31210041001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4696.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 31210041001 its reverse (10014001213), we get a palindrome (41224042214).

The spelling of 31210041001 in words is "thirty-one billion, two hundred ten million, forty-one thousand, one".

Divisors: 1 43 193 1129 3331 8299 48547 143233 217897 642883 3760699 9369571 27643969 161710057 725814907 31210041001