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6944240 = 245611423
BaseRepresentation
bin11010011111010111110000
3111001210201002
4122133113300
53234203430
6404501132
7113011412
oct32372760
914053632
106944240
113a13346
1223aa7a8
131591a24
14cca9b2
15922845
hex69f5f0

6944240 has 40 divisors (see below), whose sum is σ = 16421568. Its totient is φ = 2730240.

The previous prime is 6944239. The next prime is 6944243. The reversal of 6944240 is 424496.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6944243) 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, 4169 + ... + 5591.

Almost surely, 26944240 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 6944240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8210784).

6944240 is an abundant number, since it is smaller than the sum of its proper divisors (9477328).

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

6944240 is a wasteful number, since it uses less digits than its factorization.

6944240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1497 (or 1491 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 6944240 is about 2635.1925925822. The cubic root of 6944240 is about 190.7838348301.

The spelling of 6944240 in words is "six million, nine hundred forty-four thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 61 80 122 244 305 488 610 976 1220 1423 2440 2846 4880 5692 7115 11384 14230 22768 28460 56920 86803 113840 173606 347212 434015 694424 868030 1388848 1736060 3472120 6944240