Base | Representation |
---|---|
bin | 11000001111001101… |
… | …11100100111011011 |
3 | 1020120212102010210010 |
4 | 30013212330213123 |
5 | 203122203132110 |
6 | 5551120053003 |
7 | 640314603561 |
oct | 140746744733 |
9 | 36525363703 |
10 | 13012552155 |
11 | 5578279039 |
12 | 2631a64163 |
13 | 12c4b78105 |
14 | 8b62b5a31 |
15 | 5125d1020 |
hex | 3079bc9db |
13012552155 has 32 divisors (see below), whose sum is σ = 21581199360. Its totient is φ = 6687282560.
The previous prime is 13012552153. The next prime is 13012552169. The reversal of 13012552155 is 55125521031.
It is not a de Polignac number, because 13012552155 - 21 = 13012552153 is a prime.
It is not an unprimeable number, because it can be changed into a prime (13012552153) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 189070 + ... + 248540.
It is an arithmetic number, because the mean of its divisors is an integer number (674412480).
Almost surely, 213012552155 is an apocalyptic number.
13012552155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
13012552155 is a deficient number, since it is larger than the sum of its proper divisors (8568647205).
13012552155 is a wasteful number, since it uses less digits than its factorization.
13012552155 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 60011.
The product of its (nonzero) digits is 7500, while the sum is 30.
The spelling of 13012552155 in words is "thirteen billion, twelve million, five hundred fifty-two thousand, one hundred fifty-five".
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