Search a number
-
+
30011303431 = 1091061325943
BaseRepresentation
bin11011111100110100…
…000010011000000111
32212110112120011202201
4123330310002120013
5442430343202211
621441554215331
72111464604314
oct337464023007
985415504681
1030011303431
111180066450a
125996884547
132aa3822015
141649b4bd0b
15ba9b0d0c1
hex6fcd02607

30011303431 has 8 divisors (see below), whose sum is σ = 30290657760. Its totient is φ = 29732022432.

The previous prime is 30011303429. The next prime is 30011303459. The reversal of 30011303431 is 13430311003.

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

It is not a de Polignac number, because 30011303431 - 21 = 30011303429 is a prime.

It is a super-2 number, since 2×300113034312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30011303399 and 30011303408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30011303461) 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 7 ways as a sum of consecutive naturals, for example, 1143846 + ... + 1169788.

It is an arithmetic number, because the mean of its divisors is an integer number (3786332220).

Almost surely, 230011303431 is an apocalyptic number.

30011303431 is a deficient number, since it is larger than the sum of its proper divisors (279354329).

30011303431 is a wasteful number, since it uses less digits than its factorization.

30011303431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36665.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 30011303431 its reverse (13430311003), we get a palindrome (43441614434).

The spelling of 30011303431 in words is "thirty billion, eleven million, three hundred three thousand, four hundred thirty-one".

Divisors: 1 109 10613 25943 1156817 2827787 275333059 30011303431