Base | Representation |
---|---|
bin | 10111010011000010… |
… | …10011010000010101 |
3 | 1012021200112211000020 |
4 | 23221201103100111 |
5 | 201103441134131 |
6 | 5425044335353 |
7 | 621645111411 |
oct | 135141232025 |
9 | 35250484006 |
10 | 12507755541 |
11 | 5339335956 |
12 | 25109a4559 |
13 | 12444039a8 |
14 | 869231d41 |
15 | 4d311b996 |
hex | 2e9853415 |
12507755541 has 16 divisors (see below), whose sum is σ = 17143585920. Its totient is φ = 8108432640.
The previous prime is 12507755489. The next prime is 12507755549. The reversal of 12507755541 is 14555770521.
It is not a de Polignac number, because 12507755541 - 211 = 12507753493 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 12507755493 and 12507755502.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12507755549) 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, 386656 + ... + 417753.
It is an arithmetic number, because the mean of its divisors is an integer number (1071474120).
Almost surely, 212507755541 is an apocalyptic number.
It is an amenable number.
12507755541 is a deficient number, since it is larger than the sum of its proper divisors (4635830379).
12507755541 is an equidigital number, since it uses as much as digits as its factorization.
12507755541 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 804556.
The product of its (nonzero) digits is 245000, while the sum is 42.
The spelling of 12507755541 in words is "twelve billion, five hundred seven million, seven hundred fifty-five thousand, five hundred forty-one".
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