Base | Representation |
---|---|
bin | 101011100100111… |
… | …000110011100111 |
3 | 1212221200020011000 |
4 | 223210320303213 |
5 | 2444124341101 |
6 | 200313444343 |
7 | 24055110111 |
oct | 5344706347 |
9 | 1787606130 |
10 | 731090151 |
11 | 345754940 |
12 | 184a106b3 |
13 | b860662c |
14 | 6d14c3b1 |
15 | 442b4486 |
hex | 2b938ce7 |
731090151 has 64 divisors (see below), whose sum is σ = 1317081600. Its totient is φ = 395020800.
The previous prime is 731090137. The next prime is 731090177. The reversal of 731090151 is 151090137.
It is a happy number.
It is not a de Polignac number, because 731090151 - 25 = 731090119 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (731090111) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 92121 + ... + 99741.
It is an arithmetic number, because the mean of its divisors is an integer number (20579400).
Almost surely, 2731090151 is an apocalyptic number.
731090151 is a deficient number, since it is larger than the sum of its proper divisors (585991449).
731090151 is a wasteful number, since it uses less digits than its factorization.
731090151 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7677 (or 7671 counting only the distinct ones).
The product of its (nonzero) digits is 945, while the sum is 27.
The square root of 731090151 is about 27038.6787953850. The cubic root of 731090151 is about 900.8593236975.
It can be divided in two parts, 7310 and 90151, that added together give a triangular number (97461 = T441).
The spelling of 731090151 in words is "seven hundred thirty-one million, ninety thousand, one hundred fifty-one".
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