Search a number
-
+
1300011031 = 11388930389
BaseRepresentation
bin100110101111100…
…1001100000010111
310100121012101212201
41031133021200113
510130300323111
6332555425331
744133624424
oct11537114027
93317171781
101300011031
11607905590
12303455247
1317943ccc7
14c4924d4b
15791e36c1
hex4d7c9817

1300011031 has 8 divisors (see below), whose sum is σ = 1418605200. Its totient is φ = 1181485440.

The previous prime is 1300011019. The next prime is 1300011049. The reversal of 1300011031 is 1301100031.

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 1300011031 - 213 = 1300002839 is a prime.

It is a super-2 number, since 2×13000110312 = 3380057361443365922, 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 = 1300010999 and 1300011017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1300011431) 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, 27585 + ... + 57973.

It is an arithmetic number, because the mean of its divisors is an integer number (177325650).

Almost surely, 21300011031 is an apocalyptic number.

1300011031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1300011031 is a deficient number, since it is larger than the sum of its proper divisors (118594169).

1300011031 is a wasteful number, since it uses less digits than its factorization.

1300011031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34289.

The product of its (nonzero) digits is 9, while the sum is 10.

The square root of 1300011031 is about 36055.6657267620. The cubic root of 1300011031 is about 1091.3959700152.

Adding to 1300011031 its reverse (1301100031), we get a palindrome (2601111062).

The spelling of 1300011031 in words is "one billion, three hundred million, eleven thousand, thirty-one".

Divisors: 1 11 3889 30389 42779 334279 118182821 1300011031