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31241431211401 = 223586723878661
BaseRepresentation
bin1110001101001111101100…
…11010001101110110001001
311002121122121001112110220201
413012213312122031312021
513043324422342231101
6150240040530252201
76403055534521105
oct706476632156611
9132548531473821
1031241431211401
119a55464502524
123606970127061
131458092465458
147a014419a905
153929dbe58e01
hex1c69f668dd89

31241431211401 has 8 divisors (see below), whose sum is σ = 31386877449984. Its totient is φ = 31096032742320.

The previous prime is 31241431211363. The next prime is 31241431211407. The reversal of 31241431211401 is 10411213414213.

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 31241431211401 - 217 = 31241431080329 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31241431211401.

It is not an unprimeable number, because it can be changed into a prime (31241431211407) 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, 10630990 + ... + 13247671.

It is an arithmetic number, because the mean of its divisors is an integer number (3923359681248).

Almost surely, 231241431211401 is an apocalyptic number.

It is an amenable number.

31241431211401 is a deficient number, since it is larger than the sum of its proper divisors (145446238583).

31241431211401 is a wasteful number, since it uses less digits than its factorization.

31241431211401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23884751.

The product of its (nonzero) digits is 2304, while the sum is 28.

Adding to 31241431211401 its reverse (10411213414213), we get a palindrome (41652644625614).

The spelling of 31241431211401 in words is "thirty-one trillion, two hundred forty-one billion, four hundred thirty-one million, two hundred eleven thousand, four hundred one".

Divisors: 1 223 5867 1308341 23878661 5324941403 140096104087 31241431211401