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4372840 = 235109321
BaseRepresentation
bin10000101011100101101000
322020011102001
4100223211220
52104412330
6233420344
752111543
oct20534550
98204361
104372840
11251741a
12156a6b4
13ba14a4
1481b85a
155b59ca
hex42b968

4372840 has 16 divisors (see below), whose sum is σ = 9838980. Its totient is φ = 1749120.

The previous prime is 4372817. The next prime is 4372847. The reversal of 4372840 is 482734.

4372840 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4318084 + 54756 = 2078^2 + 234^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4372799 and 4372808.

It is not an unprimeable number, because it can be changed into a prime (4372847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54621 + ... + 54700.

Almost surely, 24372840 is an apocalyptic number.

4372840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4372840 is an abundant number, since it is smaller than the sum of its proper divisors (5466140).

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

4372840 is a wasteful number, since it uses less digits than its factorization.

4372840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109332 (or 109328 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 4372840 is about 2091.1336638293. The cubic root of 4372840 is about 163.5263948758.

The spelling of 4372840 in words is "four million, three hundred seventy-two thousand, eight hundred forty".

Divisors: 1 2 4 5 8 10 20 40 109321 218642 437284 546605 874568 1093210 2186420 4372840