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4289430 = 235142981
BaseRepresentation
bin10000010111001110010110
322001220222210
4100113032112
52044230210
6231534250
751313425
oct20271626
98056883
104289430
11246a792
12152a386
13b72532
147d92bc
1559ae20
hex417396

4289430 has 16 divisors (see below), whose sum is σ = 10294704. Its totient is φ = 1143840.

The previous prime is 4289387. The next prime is 4289471. The reversal of 4289430 is 349824.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 142981 = 4289430 / (4 + 2 + 8 + 9 + 4 + 3 + 0).

It is a d-powerful number, because it can be written as 47 + 2 + 8 + 95 + 411 + 39 + 0 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71461 + ... + 71520.

It is an arithmetic number, because the mean of its divisors is an integer number (643419).

Almost surely, 24289430 is an apocalyptic number.

4289430 is an abundant number, since it is smaller than the sum of its proper divisors (6005274).

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

4289430 is a wasteful number, since it uses less digits than its factorization.

4289430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142991.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 4289430 is about 2071.0939138533. The cubic root of 4289430 is about 162.4799817550.

It can be divided in two parts, 42894 and 30, that added together give a palindrome (42924).

The spelling of 4289430 in words is "four million, two hundred eighty-nine thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 142981 285962 428943 714905 857886 1429810 2144715 4289430