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130421242 = 27213110159
BaseRepresentation
bin1111100011000…
…01000111111010
3100002102002022101
413301201013322
5231341434432
620535214014
73142363600
oct761410772
9302362271
10130421242
116768a456
123781730a
1321035443
141346d870
15b6b34e7
hex7c611fa

130421242 has 24 divisors (see below), whose sum is σ = 229331520. Its totient is φ = 55462680.

The previous prime is 130421227. The next prime is 130421243. The reversal of 130421242 is 242124031.

It is not an unprimeable number, because it can be changed into a prime (130421243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7759 + ... + 17917.

It is an arithmetic number, because the mean of its divisors is an integer number (9555480).

Almost surely, 2130421242 is an apocalyptic number.

130421242 is a deficient number, since it is larger than the sum of its proper divisors (98910278).

130421242 is a wasteful number, since it uses less digits than its factorization.

130421242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10306 (or 10299 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 130421242 is about 11420.2119945297. The cubic root of 130421242 is about 507.1262726121.

Adding to 130421242 its reverse (242124031), we get a palindrome (372545273).

The spelling of 130421242 in words is "one hundred thirty million, four hundred twenty-one thousand, two hundred forty-two".

Divisors: 1 2 7 14 49 98 131 262 917 1834 6419 10159 12838 20318 71113 142226 497791 995582 1330829 2661658 9315803 18631606 65210621 130421242