Base | Representation |
---|---|
bin | 111010111100… |
… | …0001110100010 |
3 | 2011010221102012 |
4 | 1311320032202 |
5 | 30402314104 |
6 | 3022152522 |
7 | 523440554 |
oct | 165701642 |
9 | 64127365 |
10 | 30901154 |
11 | 16496549 |
12 | a422742 |
13 | 652c20b |
14 | 41654d4 |
15 | 2aa5d6e |
hex | 1d783a2 |
30901154 has 4 divisors (see below), whose sum is σ = 46351734. Its totient is φ = 15450576.
The previous prime is 30901151. The next prime is 30901183. The reversal of 30901154 is 45110903.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45110903 = 61 ⋅739523.
It can be written as a sum of positive squares in only one way, i.e., 26759929 + 4141225 = 5173^2 + 2035^2 .
It is not an unprimeable number, because it can be changed into a prime (30901151) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7725287 + ... + 7725290.
Almost surely, 230901154 is an apocalyptic number.
30901154 is a deficient number, since it is larger than the sum of its proper divisors (15450580).
30901154 is a wasteful number, since it uses less digits than its factorization.
30901154 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15450579.
The product of its (nonzero) digits is 540, while the sum is 23.
The square root of 30901154 is about 5558.8806427194. The cubic root of 30901154 is about 313.8038248847.
The spelling of 30901154 in words is "thirty million, nine hundred one thousand, one hundred fifty-four".
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