Base | Representation |
---|---|
bin | 1110101110100000… |
… | …11110111010110100 |
3 | 202102000021012200120 |
4 | 13113100132322310 |
5 | 112143013432214 |
6 | 3344313211540 |
7 | 366633126534 |
oct | 72720367264 |
9 | 22360235616 |
10 | 7906389684 |
11 | 3397a50656 |
12 | 1647a00bb0 |
13 | 990028abb |
14 | 55009b4c4 |
15 | 3141a8ea9 |
hex | 1d741eeb4 |
7906389684 has 48 divisors (see below), whose sum is σ = 18893954688. Its totient is φ = 2572535808.
The previous prime is 7906389653. The next prime is 7906389697. The reversal of 7906389684 is 4869836097.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38449 + ... + 131495.
It is an arithmetic number, because the mean of its divisors is an integer number (393624056).
Almost surely, 27906389684 is an apocalyptic number.
It is an amenable number.
7906389684 is an abundant number, since it is smaller than the sum of its proper divisors (10987565004).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7906389684 is a wasteful number, since it uses less digits than its factorization.
7906389684 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 93224 (or 93222 counting only the distinct ones).
The product of its (nonzero) digits is 15676416, while the sum is 60.
The square root of 7906389684 is about 88917.8816886682. The cubic root of 7906389684 is about 1992.1685142758.
The spelling of 7906389684 in words is "seven billion, nine hundred six million, three hundred eighty-nine thousand, six hundred eighty-four".
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