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6280240 = 245292707
BaseRepresentation
bin10111111101010000110000
3102211001212111
4113331100300
53101431430
6342335104
7104244511
oct27752060
912731774
106280240
1135aa48a
12212a494
1313bb725
14b96a08
15840c2a
hex5fd430

6280240 has 40 divisors (see below), whose sum is σ = 15110640. Its totient is φ = 2424576.

The previous prime is 6280237. The next prime is 6280243. The reversal of 6280240 is 420826.

It is an interprime number because it is at equal distance from previous prime (6280237) and next prime (6280243).

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

It is not an unprimeable number, because it can be changed into a prime (6280243) 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, 967 + ... + 3673.

It is an arithmetic number, because the mean of its divisors is an integer number (377766).

Almost surely, 26280240 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 6280240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7555320).

6280240 is an abundant number, since it is smaller than the sum of its proper divisors (8830400).

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

6280240 is a wasteful number, since it uses less digits than its factorization.

6280240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2749 (or 2743 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 6280240 is about 2506.0407019839. The cubic root of 6280240 is about 184.4981773847.

The spelling of 6280240 in words is "six million, two hundred eighty thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 29 40 58 80 116 145 232 290 464 580 1160 2320 2707 5414 10828 13535 21656 27070 43312 54140 78503 108280 157006 216560 314012 392515 628024 785030 1256048 1570060 3140120 6280240