Base | Representation |
---|---|
bin | 11100111010010000… |
… | …101000110010111001 |
3 | 2222010101101201002120 |
4 | 130322100220302321 |
5 | 1002033301223001 |
6 | 22132142151453 |
7 | 2146153303614 |
oct | 347220506271 |
9 | 88111351076 |
10 | 31042211001 |
11 | 1218a57863a |
12 | 6023b82589 |
13 | 2c092912b9 |
14 | 1706a2317b |
15 | c1a397236 |
hex | 73a428cb9 |
31042211001 has 64 divisors (see below), whose sum is σ = 45722880000. Its totient is φ = 18657741312.
The previous prime is 31042210993. The next prime is 31042211029. The reversal of 31042211001 is 10011224013.
It is not a de Polignac number, because 31042211001 - 23 = 31042210993 is a prime.
It is not an unprimeable number, because it can be changed into a prime (31042211051) 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 63 ways as a sum of consecutive naturals, for example, 38370685 + ... + 38371493.
It is an arithmetic number, because the mean of its divisors is an integer number (714420000).
Almost surely, 231042211001 is an apocalyptic number.
It is an amenable number.
31042211001 is a deficient number, since it is larger than the sum of its proper divisors (14680668999).
31042211001 is a wasteful number, since it uses less digits than its factorization.
31042211001 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1166.
The product of its (nonzero) digits is 48, while the sum is 15.
Adding to 31042211001 its reverse (10011224013), we get a palindrome (41053435014).
The spelling of 31042211001 in words is "thirty-one billion, forty-two million, two hundred eleven thousand, one".
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