Base | Representation |
---|---|
bin | 1000110110101100111… |
… | …1101100010101000101 |
3 | 112112122201111202100122 |
4 | 2031223033230111011 |
5 | 4443022010144310 |
6 | 153515010351325 |
7 | 13663516165103 |
oct | 2155317542505 |
9 | 475581452318 |
10 | 152123131205 |
11 | 595735a6041 |
12 | 2559588b545 |
13 | 114643a8a06 |
14 | 751173cc73 |
15 | 3e551b5555 |
hex | 236b3ec545 |
152123131205 has 16 divisors (see below), whose sum is σ = 184783420800. Its totient is φ = 120217070400.
The previous prime is 152123131201. The next prime is 152123131207. The reversal of 152123131205 is 502131321251.
It is not a de Polignac number, because 152123131205 - 22 = 152123131201 is a prime.
It is a super-2 number, since 2×1521231312052 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (152123131201) 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, 427670 + ... + 697959.
It is an arithmetic number, because the mean of its divisors is an integer number (11548963800).
Almost surely, 2152123131205 is an apocalyptic number.
It is an amenable number.
152123131205 is a deficient number, since it is larger than the sum of its proper divisors (32660289595).
152123131205 is a wasteful number, since it uses less digits than its factorization.
152123131205 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1125964.
The product of its (nonzero) digits is 1800, while the sum is 26.
Adding to 152123131205 its reverse (502131321251), we get a palindrome (654254452456).
The spelling of 152123131205 in words is "one hundred fifty-two billion, one hundred twenty-three million, one hundred thirty-one thousand, two hundred five".
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