Base | Representation |
---|---|
bin | 11100111101110110… |
… | …000001001111111101 |
3 | 2222021120112200111211 |
4 | 130331312001033331 |
5 | 1002144144422031 |
6 | 22142131044421 |
7 | 2150513355223 |
oct | 347566011775 |
9 | 88246480454 |
10 | 31102342141 |
11 | 12210508aa2 |
12 | 6040140711 |
13 | 2c18885b60 |
14 | 17109d6b13 |
15 | c207c3bb1 |
hex | 73dd813fd |
31102342141 has 8 divisors (see below), whose sum is σ = 33602534784. Its totient is φ = 28617535920.
The previous prime is 31102342133. The next prime is 31102342171. The reversal of 31102342141 is 14124320113.
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 31102342141 - 23 = 31102342133 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31102342111) 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, 3842401 + ... + 3850486.
It is an arithmetic number, because the mean of its divisors is an integer number (4200316848).
Almost surely, 231102342141 is an apocalyptic number.
It is an amenable number.
31102342141 is a deficient number, since it is larger than the sum of its proper divisors (2500192643).
31102342141 is a wasteful number, since it uses less digits than its factorization.
31102342141 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7693211.
The product of its (nonzero) digits is 576, while the sum is 22.
Adding to 31102342141 its reverse (14124320113), we get a palindrome (45226662254).
The spelling of 31102342141 in words is "thirty-one billion, one hundred two million, three hundred forty-two thousand, one hundred forty-one".
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