Search a number
-
+
248130980 = 225172692713
BaseRepresentation
bin11101100101000…
…10110110100100
3122021220100201022
432302202312210
51002010142410
640342150312
76102035636
oct1662426644
9567810638
10248130980
11118077529
126b122398
133c539a86
1424d50a56
1516bb5455
hexeca2da4

248130980 has 48 divisors (see below), whose sum is σ = 553981680. Its totient is φ = 93032448.

The previous prime is 248130977. The next prime is 248131003. The reversal of 248130980 is 89031842.

It is a happy number.

248130980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 5456896 + 242674084 = 2336^2 + 15578^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 248130980.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90104 + ... + 92816.

It is an arithmetic number, because the mean of its divisors is an integer number (11541285).

Almost surely, 2248130980 is an apocalyptic number.

248130980 is a gapful number since it is divisible by the number (20) 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 248130980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276990840).

248130980 is an abundant number, since it is smaller than the sum of its proper divisors (305850700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

248130980 is a wasteful number, since it uses less digits than its factorization.

248130980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3008 (or 3006 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 248130980 is about 15752.1738182385. The cubic root of 248130980 is about 628.3867180112.

The spelling of 248130980 in words is "two hundred forty-eight million, one hundred thirty thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 269 340 538 1076 1345 2690 2713 4573 5380 5426 9146 10852 13565 18292 22865 27130 45730 46121 54260 91460 92242 184484 230605 461210 729797 922420 1459594 2919188 3648985 7297970 12406549 14595940 24813098 49626196 62032745 124065490 248130980