Base | Representation |
---|---|
bin | 11100111110001111… |
… | …111111000101001111 |
3 | 2222022001100111202222 |
4 | 130332033333011033 |
5 | 1002202420232012 |
6 | 22142533005555 |
7 | 2150625255266 |
oct | 347617770517 |
9 | 88261314688 |
10 | 31109149007 |
11 | 12214338102 |
12 | 60424838bb |
13 | 2c1a0ca1a1 |
14 | 17118895dd |
15 | c211ba972 |
hex | 73e3ff14f |
31109149007 has 8 divisors (see below), whose sum is σ = 31954383312. Its totient is φ = 30264148800.
The previous prime is 31109149003. The next prime is 31109149061. The reversal of 31109149007 is 70094190113.
It is a happy number.
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 31109149007 - 22 = 31109149003 is a prime.
It is a super-3 number, since 3×311091490073 (a number of 32 digits) contains 333 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31109149003) 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, 229907 + ... + 339227.
It is an arithmetic number, because the mean of its divisors is an integer number (3994297914).
Almost surely, 231109149007 is an apocalyptic number.
31109149007 is a gapful number since it is divisible by the number (37) formed by its first and last digit.
31109149007 is a deficient number, since it is larger than the sum of its proper divisors (845234305).
31109149007 is a wasteful number, since it uses less digits than its factorization.
31109149007 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 117049.
The product of its (nonzero) digits is 6804, while the sum is 35.
The spelling of 31109149007 in words is "thirty-one billion, one hundred nine million, one hundred forty-nine thousand, seven".
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