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130303442 = 2611068061
BaseRepresentation
bin1111100010001…
…00010111010010
3100002012002201102
413301010113102
5231324202232
620532504402
73141363263
oct761042722
9302162642
10130303442
11676099a5
123777b102
1320cc3939
141343c96a
15b68d662
hex7c445d2

130303442 has 8 divisors (see below), whose sum is σ = 198659532. Its totient is φ = 64083600.

The previous prime is 130303421. The next prime is 130303451. The reversal of 130303442 is 244303031.

It can be written as a sum of positive squares in 2 ways, for example, as 128346241 + 1957201 = 11329^2 + 1399^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 533909 + ... + 534152.

Almost surely, 2130303442 is an apocalyptic number.

130303442 is a deficient number, since it is larger than the sum of its proper divisors (68356090).

130303442 is a wasteful number, since it uses less digits than its factorization.

130303442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068124.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 130303442 is about 11415.0533069277. The cubic root of 130303442 is about 506.9735432225.

Adding to 130303442 its reverse (244303031), we get a palindrome (374606473).

The spelling of 130303442 in words is "one hundred thirty million, three hundred three thousand, four hundred forty-two".

Divisors: 1 2 61 122 1068061 2136122 65151721 130303442