Base | Representation |
---|---|
bin | 101101100111111101… |
… | …100101111100001010 |
3 | 11200110010010220110000 |
4 | 231213331211330022 |
5 | 1300312120332230 |
6 | 34301040503430 |
7 | 3352663160340 |
oct | 554775457412 |
9 | 150403126400 |
10 | 48988839690 |
11 | 19859a1737a |
12 | 95b231ab76 |
13 | 4809425b0b |
14 | 252a319990 |
15 | 141ac0bb60 |
hex | b67f65f0a |
48988839690 has 160 divisors (see below), whose sum is σ = 153384865920. Its totient is φ = 10986109056.
The previous prime is 48988839671. The next prime is 48988839721. The reversal of 48988839690 is 9693888984.
48988839690 is a `hidden beast` number, since 489 + 8 + 8 + 83 + 9 + 69 + 0 = 666.
It is a super-2 number, since 2×489888396902 (a number of 22 digits) contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 219001 + ... + 382019.
It is an arithmetic number, because the mean of its divisors is an integer number (958655412).
Almost surely, 248988839690 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 48988839690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76692432960).
48988839690 is an abundant number, since it is smaller than the sum of its proper divisors (104396026230).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
48988839690 is a wasteful number, since it uses less digits than its factorization.
48988839690 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 163098 (or 163089 counting only the distinct ones).
The product of its (nonzero) digits is 214990848, while the sum is 72.
The spelling of 48988839690 in words is "forty-eight billion, nine hundred eighty-eight million, eight hundred thirty-nine thousand, six hundred ninety".
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