Base | Representation |
---|---|
bin | 10110101000100… |
… | …011001100110010 |
3 | 222110112012211120 |
4 | 112220203030302 |
5 | 1234202304230 |
6 | 101402523110 |
7 | 12260432505 |
oct | 2650431462 |
9 | 873465746 |
10 | 379728690 |
11 | 18538a870 |
12 | a7206496 |
13 | 60894843 |
14 | 3860913c |
15 | 2350c310 |
hex | 16a23332 |
379728690 has 64 divisors (see below), whose sum is σ = 1004130432. Its totient is φ = 91136000.
The previous prime is 379728673. The next prime is 379728709. The reversal of 379728690 is 96827973.
It is a super-2 number, since 2×3797286902 = 288387756018232200, which contains 22 as substring.
It is an unprimeable number.
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 in 31 ways as a sum of consecutive naturals, for example, 27634 + ... + 39026.
It is an arithmetic number, because the mean of its divisors is an integer number (15689538).
Almost surely, 2379728690 is an apocalyptic number.
379728690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 379728690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (502065216).
379728690 is an abundant number, since it is smaller than the sum of its proper divisors (624401742).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
379728690 is a wasteful number, since it uses less digits than its factorization.
379728690 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11515.
The product of its (nonzero) digits is 1143072, while the sum is 51.
The square root of 379728690 is about 19486.6284923791. The cubic root of 379728690 is about 724.1432225331.
The spelling of 379728690 in words is "three hundred seventy-nine million, seven hundred twenty-eight thousand, six hundred ninety".
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