Base | Representation |
---|---|
bin | 10001110111110… |
… | …10010110000111 |
3 | 101110002212222101 |
4 | 20323322112013 |
5 | 301340020312 |
6 | 22513212531 |
7 | 3500216620 |
oct | 1073722607 |
9 | 343085871 |
10 | 149923207 |
11 | 7769a585 |
12 | 42261147 |
13 | 250a2c75 |
14 | 15ca8a47 |
15 | d266a57 |
hex | 8efa587 |
149923207 has 8 divisors (see below), whose sum is σ = 171421056. Its totient is φ = 128445432.
The previous prime is 149923201. The next prime is 149923229. The reversal of 149923207 is 702329941.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 149923207 - 27 = 149923079 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (149923201) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18108 + ... + 25054.
It is an arithmetic number, because the mean of its divisors is an integer number (21427632).
Almost surely, 2149923207 is an apocalyptic number.
149923207 is a deficient number, since it is larger than the sum of its proper divisors (21497849).
149923207 is an equidigital number, since it uses as much as digits as its factorization.
149923207 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10037.
The product of its (nonzero) digits is 27216, while the sum is 37.
The square root of 149923207 is about 12244.3132514649. The cubic root of 149923207 is about 531.2385971809.
The spelling of 149923207 in words is "one hundred forty-nine million, nine hundred twenty-three thousand, two hundred seven".
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