Base | Representation |
---|---|
bin | 11101000000001111… |
… | …011010111001101101 |
3 | 2222101101012201112001 |
4 | 131000033122321231 |
5 | 1002234443231440 |
6 | 22150125012301 |
7 | 2151512231464 |
oct | 350017327155 |
9 | 88341181461 |
10 | 31142555245 |
11 | 1223118476a |
12 | 60516b4091 |
13 | 2c23cc56a9 |
14 | 17160a39db |
15 | c240b8b9a |
hex | 7403dae6d |
31142555245 has 16 divisors (see below), whose sum is σ = 39342464640. Its totient is φ = 23600078784.
The previous prime is 31142555237. The next prime is 31142555281. The reversal of 31142555245 is 54255524113.
It is a cyclic number.
It is not a de Polignac number, because 31142555245 - 23 = 31142555237 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1306504 + ... + 1330126.
It is an arithmetic number, because the mean of its divisors is an integer number (2458904040).
Almost surely, 231142555245 is an apocalyptic number.
It is an amenable number.
31142555245 is a deficient number, since it is larger than the sum of its proper divisors (8199909395).
31142555245 is a wasteful number, since it uses less digits than its factorization.
31142555245 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 37524.
The product of its digits is 120000, while the sum is 37.
The spelling of 31142555245 in words is "thirty-one billion, one hundred forty-two million, five hundred fifty-five thousand, two hundred forty-five".
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