[go: up one dir, main page]

Search a number
-
+
4280738 = 272112192
BaseRepresentation
bin10000010101000110100010
322001111001212
4100111012202
52043440423
6231430122
751246200
oct20250642
98044055
104280738
112464200
121525342
13b6b5a7
147d6070
15598578
hex4151a2

4280738 has 54 divisors (see below), whose sum is σ = 8665083. Its totient is φ = 1580040.

The previous prime is 4280659. The next prime is 4280741. The reversal of 4280738 is 8370824.

It can be written as a sum of positive squares in only one way, i.e., 2140369 + 2140369 = 1463^2 + 1463^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=1463.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 225293 + ... + 225311.

Almost surely, 24280738 is an apocalyptic number.

4280738 is an abundant number, since it is smaller than the sum of its proper divisors (4384345).

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

4280738 is a wasteful number, since it uses less digits than its factorization.

4280738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76 (or 39 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 4280738 is about 2068.9944417518. The cubic root of 4280738 is about 162.3701590038.

Multiplying 4280738 by its sum of digits (32), we get a square (136983616 = 117042).

The spelling of 4280738 in words is "four million, two hundred eighty thousand, seven hundred thirty-eight".

Divisors: 1 2 7 11 14 19 22 38 49 77 98 121 133 154 209 242 266 361 418 539 722 847 931 1078 1463 1694 1862 2299 2527 2926 3971 4598 5054 5929 7942 10241 11858 16093 17689 20482 27797 32186 35378 43681 55594 87362 112651 194579 225302 305767 389158 611534 2140369 4280738