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31210041343441 = 401234133246701
BaseRepresentation
bin1110001100010101001110…
…11011010111110111010001
311002111122120102221222010111
413012022213123113313101
513042321131040442231
6150213410044401321
76400564630166062
oct706124733276721
9132448512858114
1031210041343441
119a43116770094
12360086b846241
13145512c15b59c
1479c80731a569
15391ca12dc4b1
hex1c62a76d7dd1

31210041343441 has 8 divisors (see below), whose sum is σ = 31301237985768. Its totient is φ = 31118911200000.

The previous prime is 31210041343427. The next prime is 31210041343457. The reversal of 31210041343441 is 14434314001213.

It can be written as a sum of positive squares in 4 ways, for example, as 19348526500416 + 11861514843025 = 4398696^2 + 3444055^2 .

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 31210041343441 - 215 = 31210041310673 is a prime.

It is a super-2 number, since 2×312100413434412 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31210041343471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15684610 + ... + 17562091.

It is an arithmetic number, because the mean of its divisors is an integer number (3912654748221).

Almost surely, 231210041343441 is an apocalyptic number.

It is an amenable number.

31210041343441 is a deficient number, since it is larger than the sum of its proper divisors (91196642327).

31210041343441 is a wasteful number, since it uses less digits than its factorization.

31210041343441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33249443.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 31210041343441 its reverse (14434314001213), we get a palindrome (45644355344654).

The spelling of 31210041343441 in words is "thirty-one trillion, two hundred ten billion, forty-one million, three hundred forty-three thousand, four hundred forty-one".

Divisors: 1 401 2341 938741 33246701 13331927101 77830527041 31210041343441