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1301430031 = 11118311821
BaseRepresentation
bin100110110010010…
…0011111100001111
310100200212111101021
41031210203330033
510131131230111
6333050055011
744151654436
oct11544437417
93320774337
101301430031
11608694710
12303a1a467
13179818b55
14c4bb411d
15793c3d71
hex4d923f0f

1301430031 has 4 divisors (see below), whose sum is σ = 1419741864. Its totient is φ = 1183118200.

The previous prime is 1301430017. The next prime is 1301430049. The reversal of 1301430031 is 1300341031.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1301430031 - 223 = 1293041423 is a prime.

It is a super-2 number, since 2×13014300312 = 3387440251177321922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1301429987 and 1301430014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301430331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59155900 + ... + 59155921.

It is an arithmetic number, because the mean of its divisors is an integer number (354935466).

Almost surely, 21301430031 is an apocalyptic number.

1301430031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1301430031 is a deficient number, since it is larger than the sum of its proper divisors (118311833).

1301430031 is a wasteful number, since it uses less digits than its factorization.

1301430031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118311832.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1301430031 is about 36075.3382659124. The cubic root of 1301430031 is about 1091.7929224783.

Adding to 1301430031 its reverse (1300341031), we get a palindrome (2601771062).

The spelling of 1301430031 in words is "one billion, three hundred one million, four hundred thirty thousand, thirty-one".

Divisors: 1 11 118311821 1301430031