Base | Representation |
---|---|
bin | 10001111001100111111… |
… | …110010001101001111001 |
3 | 11100121010010121211202202 |
4 | 101321213332101221321 |
5 | 130123223341301040 |
6 | 2341034043435545 |
7 | 154605102123443 |
oct | 21714776215171 |
9 | 4317103554682 |
10 | 1230105025145 |
11 | 434759244067 |
12 | 17a49b825bb5 |
13 | 8bcc9662959 |
14 | 437748b1493 |
15 | 21ee7b5d015 |
hex | 11e67f91a79 |
1230105025145 has 16 divisors (see below), whose sum is σ = 1486550683008. Its totient is φ = 977139945600.
The previous prime is 1230105025141. The next prime is 1230105025183. The reversal of 1230105025145 is 5415205010321.
It is not a de Polignac number, because 1230105025145 - 22 = 1230105025141 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1230105025141) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1379582 + ... + 2088888.
It is an arithmetic number, because the mean of its divisors is an integer number (92909417688).
Almost surely, 21230105025145 is an apocalyptic number.
It is an amenable number.
1230105025145 is a deficient number, since it is larger than the sum of its proper divisors (256445657863).
1230105025145 is a wasteful number, since it uses less digits than its factorization.
1230105025145 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 711760.
The product of its (nonzero) digits is 6000, while the sum is 29.
The spelling of 1230105025145 in words is "one trillion, two hundred thirty billion, one hundred five million, twenty-five thousand, one hundred forty-five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •