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130424722 = 265212361
BaseRepresentation
bin1111100011000…
…01111110010010
3100002102021002021
413301201332102
5231342042342
620535242054
73142410001
oct761417622
9302367067
10130424722
116769202a
123781932a
1321036bbc
1413470c38
15b6b4567
hex7c61f92

130424722 has 4 divisors (see below), whose sum is σ = 195637086. Its totient is φ = 65212360.

The previous prime is 130424717. The next prime is 130424747. The reversal of 130424722 is 227424031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 227424031 = 1092086459.

It can be written as a sum of positive squares in only one way, i.e., 127035441 + 3389281 = 11271^2 + 1841^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32606179 + ... + 32606182.

Almost surely, 2130424722 is an apocalyptic number.

130424722 is a deficient number, since it is larger than the sum of its proper divisors (65212364).

130424722 is an equidigital number, since it uses as much as digits as its factorization.

130424722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65212363.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 130424722 is about 11420.3643549582. The cubic root of 130424722 is about 507.1307830832.

Adding to 130424722 its reverse (227424031), we get a palindrome (357848753).

The spelling of 130424722 in words is "one hundred thirty million, four hundred twenty-four thousand, seven hundred twenty-two".

Divisors: 1 2 65212361 130424722