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2489430 = 23582981
BaseRepresentation
bin1001011111110001010110
311200110212010
421133301112
51114130210
6125205050
730105546
oct11376126
94613763
102489430
111450389
12a00786
13692148
1448b326
15342920
hex25fc56

2489430 has 16 divisors (see below), whose sum is σ = 5974704. Its totient is φ = 663840.

The previous prime is 2489423. The next prime is 2489441. The reversal of 2489430 is 349842.

2489430 = 162 + 172 + ... + 1952.

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: 82981 = 2489430 / (2 + 4 + 8 + 9 + 4 + 3 + 0).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41461 + ... + 41520.

It is an arithmetic number, because the mean of its divisors is an integer number (373419).

22489430 is an apocalyptic number.

2489430 is an abundant number, since it is smaller than the sum of its proper divisors (3485274).

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

2489430 is a wasteful number, since it uses less digits than its factorization.

2489430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82991.

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

The square root of 2489430 is about 1577.7927620572. The cubic root of 2489430 is about 135.5293346618.

The spelling of 2489430 in words is "two million, four hundred eighty-nine thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 82981 165962 248943 414905 497886 829810 1244715 2489430