Base | Representation |
---|---|
bin | 1011010001011011100… |
… | …01110010011110001001 |
3 | 1101000201122122211100110 |
4 | 11220231301302132021 |
5 | 22321210130130040 |
6 | 453532522224533 |
7 | 36661012613064 |
oct | 5505561623611 |
9 | 1330648584313 |
10 | 387315083145 |
11 | 13a2942a3641 |
12 | 63093055149 |
13 | 2a6a6618893 |
14 | 14a636158db |
15 | a11ce84980 |
hex | 5a2dc72789 |
387315083145 has 96 divisors (see below), whose sum is σ = 688224974976. Its totient is φ = 185255239680.
The previous prime is 387315083143. The next prime is 387315083203. The reversal of 387315083145 is 541380513783.
It is not a de Polignac number, because 387315083145 - 21 = 387315083143 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 387315083094 and 387315083103.
It is not an unprimeable number, because it can be changed into a prime (387315083143) by changing a digit.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 18421659 + ... + 18442671.
It is an arithmetic number, because the mean of its divisors is an integer number (7169010156).
Almost surely, 2387315083145 is an apocalyptic number.
It is an amenable number.
387315083145 is a deficient number, since it is larger than the sum of its proper divisors (300909891831).
387315083145 is a wasteful number, since it uses less digits than its factorization.
387315083145 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21163 (or 21122 counting only the distinct ones).
The product of its (nonzero) digits is 1209600, while the sum is 48.
The spelling of 387315083145 in words is "three hundred eighty-seven billion, three hundred fifteen million, eighty-three thousand, one hundred forty-five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.078 sec. • engine limits •