Base | Representation |
---|---|
bin | 10000101000001… |
… | …00111011100000 |
3 | 100201110100200120 |
4 | 20110010323200 |
5 | 241201341200 |
6 | 21501320240 |
7 | 3312365364 |
oct | 1024047340 |
9 | 321410616 |
10 | 139480800 |
11 | 71807a98 |
12 | 3a866080 |
13 | 22b87c24 |
14 | 1474b2a4 |
15 | c3a29a0 |
hex | 8504ee0 |
139480800 has 144 divisors (see below), whose sum is σ = 459814320. Its totient is φ = 36720640.
The previous prime is 139480793. The next prime is 139480823. The reversal of 139480800 is 8084931.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 213274 + ... + 213926.
It is an arithmetic number, because the mean of its divisors is an integer number (3193155).
Almost surely, 2139480800 is an apocalyptic number.
139480800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 139480800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229907160).
139480800 is an abundant number, since it is smaller than the sum of its proper divisors (320333520).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
139480800 is a wasteful number, since it uses less digits than its factorization.
139480800 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 765 (or 752 counting only the distinct ones).
The product of its (nonzero) digits is 6912, while the sum is 33.
The square root of 139480800 is about 11810.1989822357. The cubic root of 139480800 is about 518.6067238708.
The spelling of 139480800 in words is "one hundred thirty-nine million, four hundred eighty thousand, eight hundred".
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