Base | Representation |
---|---|
bin | 111001111001100… |
… | …000010101110100 |
3 | 2111200211000100110 |
4 | 321321200111310 |
5 | 3442133012423 |
6 | 240215543020 |
7 | 33033362652 |
oct | 7171402564 |
9 | 2450730313 |
10 | 971375988 |
11 | 459353180 |
12 | 23138aa70 |
13 | 1263275bb |
14 | 93019dd2 |
15 | 5a42a193 |
hex | 39e60574 |
971375988 has 96 divisors (see below), whose sum is σ = 2755952640. Its totient is φ = 262448640.
The previous prime is 971375987. The next prime is 971375989. The reversal of 971375988 is 889573179.
971375988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (971375987) and next prime (971375989).
It is a super-3 number, since 3×9713759883 (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Harshad number since it is a multiple of its sum of digits (57).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (971375987) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31245 + ... + 54027.
It is an arithmetic number, because the mean of its divisors is an integer number (28707840).
Almost surely, 2971375988 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 971375988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1377976320).
971375988 is an abundant number, since it is smaller than the sum of its proper divisors (1784576652).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
971375988 is a wasteful number, since it uses less digits than its factorization.
971375988 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22837 (or 22835 counting only the distinct ones).
The product of its digits is 3810240, while the sum is 57.
The square root of 971375988 is about 31166.9053324195. The cubic root of 971375988 is about 990.3661496365.
The spelling of 971375988 in words is "nine hundred seventy-one million, three hundred seventy-five thousand, nine hundred eighty-eight".
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