Base | Representation |
---|---|
bin | 1000101110100010010… |
… | …0101001100101010000 |
3 | 112022222221021021121010 |
4 | 2023220210221211100 |
5 | 4424024241402210 |
6 | 152513253330520 |
7 | 13555265566131 |
oct | 2135044514520 |
9 | 468887237533 |
10 | 149930809680 |
11 | 58649040473 |
12 | 25083636a40 |
13 | 111a5135342 |
14 | 73844ddc88 |
15 | 3d779b3920 |
hex | 22e8929950 |
149930809680 has 160 divisors (see below), whose sum is σ = 481137955200. Its totient is φ = 38576756736.
The previous prime is 149930809673. The next prime is 149930809703. The reversal of 149930809680 is 86908039941.
It is a Cunningham number, because it is equal to 3872092-1.
It is a self number, because there is not a number n which added to its sum of digits gives 149930809680.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11609787 + ... + 11622693.
It is an arithmetic number, because the mean of its divisors is an integer number (3007112220).
Almost surely, 2149930809680 is an apocalyptic number.
149930809680 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 149930809680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240568977600).
149930809680 is an abundant number, since it is smaller than the sum of its proper divisors (331207145520).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
149930809680 is a wasteful number, since it uses less digits than its factorization.
149930809680 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14621 (or 14615 counting only the distinct ones).
The product of its (nonzero) digits is 3359232, while the sum is 57.
The spelling of 149930809680 in words is "one hundred forty-nine billion, nine hundred thirty million, eight hundred nine thousand, six hundred eighty".
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