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31000300001 = 112818209091
BaseRepresentation
bin11100110111110000…
…110000100111100001
32222000110112102000022
4130313300300213201
51001442034100001
622124044003225
72145134126246
oct346760604741
988013472008
1031000300001
1112168952250
126011b30515
132c006a89a8
1417012335cd
15c1686911b
hex737c309e1

31000300001 has 4 divisors (see below), whose sum is σ = 33818509104. Its totient is φ = 28182090900.

The previous prime is 31000299991. The next prime is 31000300007. The reversal of 31000300001 is 10000300013.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31000300001 - 234 = 13820430817 is a prime.

It is a super-2 number, since 2×310003000012 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31000300007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1409104535 + ... + 1409104556.

It is an arithmetic number, because the mean of its divisors is an integer number (8454627276).

Almost surely, 231000300001 is an apocalyptic number.

It is an amenable number.

31000300001 is a deficient number, since it is larger than the sum of its proper divisors (2818209103).

31000300001 is a wasteful number, since it uses less digits than its factorization.

31000300001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2818209102.

The product of its (nonzero) digits is 9, while the sum is 8.

Adding to 31000300001 its reverse (10000300013), we get a palindrome (41000600014).

The spelling of 31000300001 in words is "thirty-one billion, three hundred thousand, one".

Divisors: 1 11 2818209091 31000300001