Base | Representation |
---|---|
bin | 11100111101110101… |
… | …000110110111011001 |
3 | 2222021120002112110210 |
4 | 130331311012313121 |
5 | 1002144114244001 |
6 | 22142122001333 |
7 | 2150511341064 |
oct | 347565066731 |
9 | 88246075423 |
10 | 31102103001 |
11 | 12210365362 |
12 | 6040046249 |
13 | 2c18801058 |
14 | 17109738db |
15 | c20777dd6 |
hex | 73dd46dd9 |
31102103001 has 8 divisors (see below), whose sum is σ = 42149298304. Its totient is φ = 20394821520.
The previous prime is 31102102907. The next prime is 31102103009. The reversal of 31102103001 is 10030120113.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 31102103001 - 29 = 31102102489 is a prime.
It is a super-2 number, since 2×311021030012 (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 (31102103009) 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, 84978241 + ... + 84978606.
It is an arithmetic number, because the mean of its divisors is an integer number (5268662288).
Almost surely, 231102103001 is an apocalyptic number.
It is an amenable number.
31102103001 is a deficient number, since it is larger than the sum of its proper divisors (11047195303).
31102103001 is a wasteful number, since it uses less digits than its factorization.
31102103001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 169956911.
The product of its (nonzero) digits is 18, while the sum is 12.
Adding to 31102103001 its reverse (10030120113), we get a palindrome (41132223114).
The spelling of 31102103001 in words is "thirty-one billion, one hundred two million, one hundred three thousand, one".
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