Base | Representation |
---|---|
bin | 101100001000… |
… | …1110010000001 |
3 | 1121112201011210 |
4 | 1120101302001 |
5 | 21411012010 |
6 | 2144000333 |
7 | 400461642 |
oct | 130216201 |
9 | 47481153 |
10 | 23141505 |
11 | 12076612 |
12 | 79000a9 |
13 | 4a432ca |
14 | 31056c9 |
15 | 2071b20 |
hex | 1611c81 |
23141505 has 32 divisors (see below), whose sum is σ = 39529728. Its totient is φ = 11520000.
The previous prime is 23141501. The next prime is 23141537. The reversal of 23141505 is 50514132.
It is not a de Polignac number, because 23141505 - 22 = 23141501 is a prime.
It is a super-3 number, since 3×231415053 (a number of 23 digits) contains 333 as substring.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (23141501) 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, 38205 + ... + 38805.
It is an arithmetic number, because the mean of its divisors is an integer number (1235304).
Almost surely, 223141505 is an apocalyptic number.
It is an amenable number.
23141505 is a deficient number, since it is larger than the sum of its proper divisors (16388223).
23141505 is a wasteful number, since it uses less digits than its factorization.
23141505 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 777.
The product of its (nonzero) digits is 600, while the sum is 21.
The square root of 23141505 is about 4810.5618175012. The cubic root of 23141505 is about 284.9687254078.
Adding to 23141505 its reverse (50514132), we get a palindrome (73655637).
The spelling of 23141505 in words is "twenty-three million, one hundred forty-one thousand, five hundred five".
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