Base | Representation |
---|---|
bin | 1111100100101… |
… | …00100001010000 |
3 | 100002210210002100 |
4 | 13302110201100 |
5 | 231420204020 |
6 | 20543520400 |
7 | 3144231420 |
oct | 762244120 |
9 | 302723070 |
10 | 130631760 |
11 | 67813636 |
12 | 378b9100 |
13 | 210aa1cc |
14 | 134c6480 |
15 | b705a90 |
hex | 7c94850 |
130631760 has 120 divisors (see below), whose sum is σ = 501396480. Its totient is φ = 29857536.
The previous prime is 130631749. The next prime is 130631771. The reversal of 130631760 is 67136031.
It is an interprime number because it is at equal distance from previous prime (130631749) and next prime (130631771).
It is a tau number, because it is divible by the number of its divisors (120).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7920 + ... + 17999.
It is an arithmetic number, because the mean of its divisors is an integer number (4178304).
Almost surely, 2130631760 is an apocalyptic number.
130631760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
130631760 is an abundant number, since it is smaller than the sum of its proper divisors (370764720).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130631760 is a wasteful number, since it uses less digits than its factorization.
130631760 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 25945 (or 25936 counting only the distinct ones).
The product of its (nonzero) digits is 2268, while the sum is 27.
The square root of 130631760 is about 11429.4251823965. The cubic root of 130631760 is about 507.3989833482.
Adding to 130631760 its reverse (67136031), we get a palindrome (197767791).
The spelling of 130631760 in words is "one hundred thirty million, six hundred thirty-one thousand, seven hundred sixty".
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