Base | Representation |
---|---|
bin | 10010001101000… |
… | …00010001110101 |
3 | 101122022222001100 |
4 | 21012200101311 |
5 | 303042400041 |
6 | 23052520313 |
7 | 3532633365 |
oct | 1106402165 |
9 | 348288040 |
10 | 152700021 |
11 | 79216871 |
12 | 43180099 |
13 | 25835b56 |
14 | 163cc9a5 |
15 | d6146b6 |
hex | 91a0475 |
152700021 has 12 divisors (see below), whose sum is σ = 222629472. Its totient is φ = 100847976.
The previous prime is 152699971. The next prime is 152700043. The reversal of 152700021 is 120007251.
It is not a de Polignac number, because 152700021 - 213 = 152691829 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 152699967 and 152700003.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (152700091) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78321 + ... + 80246.
It is an arithmetic number, because the mean of its divisors is an integer number (18552456).
Almost surely, 2152700021 is an apocalyptic number.
It is an amenable number.
152700021 is a deficient number, since it is larger than the sum of its proper divisors (69929451).
152700021 is a wasteful number, since it uses less digits than its factorization.
152700021 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 158680 (or 158677 counting only the distinct ones).
The product of its (nonzero) digits is 140, while the sum is 18.
The square root of 152700021 is about 12357.1849949736. The cubic root of 152700021 is about 534.4983459599.
Adding to 152700021 its reverse (120007251), we get a palindrome (272707272).
The spelling of 152700021 in words is "one hundred fifty-two million, seven hundred thousand, twenty-one".
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