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400031243030001 = 31160120169981497
BaseRepresentation
bin101101011110100111000100…
…0001000111100110111110001
31221110101121120010112111010010
41122331032020020330313301
5404413102441203430001
63534443452133325133
7150155206056204342
oct13275161010746761
91843347503474103
10400031243030001
1110650a32a996550
1238a48899a967a9
1314229a272c205b
1470ad888bc40c9
15313aae5e428d6
hex16bd38823cdf1

400031243030001 has 16 divisors (see below), whose sum is σ = 582831785366208. Its totient is φ = 242039777952000.

The previous prime is 400031243029997. The next prime is 400031243030039. The reversal of 400031243030001 is 100030342130004.

It is not a de Polignac number, because 400031243030001 - 22 = 400031243029997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 400031243030001.

It is not an unprimeable number, because it can be changed into a prime (400031243040001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10084970916 + ... + 10085010581.

It is an arithmetic number, because the mean of its divisors is an integer number (36426986585388).

Almost surely, 2400031243030001 is an apocalyptic number.

It is an amenable number.

400031243030001 is a deficient number, since it is larger than the sum of its proper divisors (182800542336207).

400031243030001 is a wasteful number, since it uses less digits than its factorization.

400031243030001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20169982112.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 400031243030001 its reverse (100030342130004), we get a palindrome (500061585160005).

The spelling of 400031243030001 in words is "four hundred trillion, thirty-one billion, two hundred forty-three million, thirty thousand, one".

Divisors: 1 3 11 33 601 1803 6611 19833 20169981497 60509944491 221869796467 665609389401 12122158879697 36366476639091 133343747676667 400031243030001