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1301131042 = 21135757217
BaseRepresentation
bin100110110001101…
…1010111100100010
310100200022022020121
41031203122330202
510131042143132
6333035430454
744146300651
oct11543327442
93320268217
101301131042
11608500012
123038b542a
13179742a33
14c4b37198
1579365497
hex4d8daf22

1301131042 has 8 divisors (see below), whose sum is σ = 1968968556. Its totient is φ = 644808192.

The previous prime is 1301130983. The next prime is 1301131043. The reversal of 1301131042 is 2401311031.

It can be written as a sum of positive squares in 2 ways, for example, as 1253230801 + 47900241 = 35401^2 + 6921^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1301131043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2878383 + ... + 2878834.

Almost surely, 21301131042 is an apocalyptic number.

1301131042 is a deficient number, since it is larger than the sum of its proper divisors (667837514).

1301131042 is a wasteful number, since it uses less digits than its factorization.

1301131042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5757332.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1301131042 is about 36071.1940750511. The cubic root of 1301131042 is about 1091.7093070020.

Adding to 1301131042 its reverse (2401311031), we get a palindrome (3702442073).

The spelling of 1301131042 in words is "one billion, three hundred one million, one hundred thirty-one thousand, forty-two".

Divisors: 1 2 113 226 5757217 11514434 650565521 1301131042