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488240 = 24517359
BaseRepresentation
bin1110111001100110000
3220210201222
41313030300
5111110430
614244212
74102304
oct1671460
9823658
10488240
11303905
121b6668
131412cc
14c9d04
15999e5
hex77330

488240 has 40 divisors (see below), whose sum is σ = 1205280. Its totient is φ = 183296.

The previous prime is 488239. The next prime is 488249. The reversal of 488240 is 42884.

488240 = T239 + T240 + ... + T254.

It is a tau number, because it is divible by the number of its divisors (40).

It is an Ulam number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (488249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1181 + ... + 1539.

It is an arithmetic number, because the mean of its divisors is an integer number (30132).

2488240 is an apocalyptic number.

488240 is a gapful number since it is divisible by the number (40) 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 488240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (602640).

488240 is an abundant number, since it is smaller than the sum of its proper divisors (717040).

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

488240 is a wasteful number, since it uses less digits than its factorization.

488240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389 (or 383 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 488240 is about 698.7417262480. The cubic root of 488240 is about 78.7428480949.

The spelling of 488240 in words is "four hundred eighty-eight thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 17 20 34 40 68 80 85 136 170 272 340 359 680 718 1360 1436 1795 2872 3590 5744 6103 7180 12206 14360 24412 28720 30515 48824 61030 97648 122060 244120 488240