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1003430420 = 22550171521
BaseRepresentation
bin111011110011110…
…010001000010100
32120221010112202122
4323303302020110
54023334233140
6243322555112
733603006056
oct7363621024
92527115678
101003430420
11475457143
12240068a98
1312cb6b715
14973a18d6
155d15cab5
hex3bcf2214

1003430420 has 12 divisors (see below), whose sum is σ = 2107203924. Its totient is φ = 401372160.

The previous prime is 1003430399. The next prime is 1003430431. The reversal of 1003430420 is 240343001.

1003430420 is digitally balanced in base 2, 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 501849604 + 501580816 = 22402^2 + 22396^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25085741 + ... + 25085780.

It is an arithmetic number, because the mean of its divisors is an integer number (175600327).

Almost surely, 21003430420 is an apocalyptic number.

1003430420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1003430420 is an abundant number, since it is smaller than the sum of its proper divisors (1103773504).

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

1003430420 is a wasteful number, since it uses less digits than its factorization.

1003430420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50171530 (or 50171528 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 1003430420 is about 31676.9698677130. The cubic root of 1003430420 is about 1001.1421682883.

Adding to 1003430420 its reverse (240343001), we get a palindrome (1243773421).

The spelling of 1003430420 in words is "one billion, three million, four hundred thirty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 50171521 100343042 200686084 250857605 501715210 1003430420