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1301011031 = 23499311329
BaseRepresentation
bin100110110001011…
…1101101001010111
310100200002012121202
41031202331221113
510131024323111
6333033103115
744145261035
oct11542755127
93320065552
101301011031
11608428931
12303857a9b
13179700218
14c4b05555
157933eb3b
hex4d8bda57

1301011031 has 8 divisors (see below), whose sum is σ = 1357968480. Its totient is φ = 1244086272.

The previous prime is 1301011001. The next prime is 1301011067. The reversal of 1301011031 is 1301101031.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1301011031 - 214 = 1300994647 is a prime.

It is a super-2 number, since 2×13010110312 = 3385259405567365922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301011001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109175 + ... + 120503.

It is an arithmetic number, because the mean of its divisors is an integer number (169746060).

Almost surely, 21301011031 is an apocalyptic number.

1301011031 is a deficient number, since it is larger than the sum of its proper divisors (56957449).

1301011031 is a wasteful number, since it uses less digits than its factorization.

1301011031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16345.

The product of its (nonzero) digits is 9, while the sum is 11.

The square root of 1301011031 is about 36069.5305070637. The cubic root of 1301011031 is about 1091.6757410378.

Adding to 1301011031 its reverse (1301101031), we get a palindrome (2602112062).

Subtracting 1301011031 from its reverse (1301101031), we obtain a square (90000 = 3002).

The spelling of 1301011031 in words is "one billion, three hundred one million, eleven thousand, thirty-one".

Divisors: 1 23 4993 11329 114839 260567 56565697 1301011031