Search a number
-
+
5751440 = 245174229
BaseRepresentation
bin10101111100001010010000
3101211012111022
4111330022100
52433021230
6323135012
766613022
oct25741220
911735438
105751440
113279162
121b14468
131264b26
14a9a012
157891e5
hex57c290

5751440 has 40 divisors (see below), whose sum is σ = 14162040. Its totient is φ = 2164736.

The previous prime is 5751419. The next prime is 5751443. The reversal of 5751440 is 441575.

It can be written as a sum of positive squares in 4 ways, for example, as 3139984 + 2611456 = 1772^2 + 1616^2 .

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 (5751443) 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, 755 + ... + 3474.

It is an arithmetic number, because the mean of its divisors is an integer number (354051).

Almost surely, 25751440 is an apocalyptic number.

It is an amenable number.

5751440 is an abundant number, since it is smaller than the sum of its proper divisors (8410600).

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

5751440 is a wasteful number, since it uses less digits than its factorization.

5751440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4259 (or 4253 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 5751440 is about 2398.2160036160. The cubic root of 5751440 is about 179.1673476328.

The spelling of 5751440 in words is "five million, seven hundred fifty-one thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 16 17 20 34 40 68 80 85 136 170 272 340 680 1360 4229 8458 16916 21145 33832 42290 67664 71893 84580 143786 169160 287572 338320 359465 575144 718930 1150288 1437860 2875720 5751440