Search a number
-
+
30121300111 = 717253120169
BaseRepresentation
bin11100000011010111…
…101001000010001111
32212202012112120211211
4130003113221002033
5443142023100421
621500523555251
72114301553330
oct340327510217
985665476754
1030121300111
1111857763661
125a0768bb27
132ac0555a06
14165a5c2287
15bb45d99e1
hex7035e908f

30121300111 has 8 divisors (see below), whose sum is σ = 36449304480. Its totient is φ = 24299536128.

The previous prime is 30121300103. The next prime is 30121300151. The reversal of 30121300111 is 11100312103.

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

It is not a de Polignac number, because 30121300111 - 23 = 30121300103 is a prime.

It is a super-2 number, since 2×301213001112 (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 = 30121300091 and 30121300100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30121300151) 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, 126559966 + ... + 126560203.

It is an arithmetic number, because the mean of its divisors is an integer number (4556163060).

Almost surely, 230121300111 is an apocalyptic number.

30121300111 is a deficient number, since it is larger than the sum of its proper divisors (6328004369).

30121300111 is a wasteful number, since it uses less digits than its factorization.

30121300111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253120193.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 30121300111 its reverse (11100312103), we get a palindrome (41221612214).

The spelling of 30121300111 in words is "thirty billion, one hundred twenty-one million, three hundred thousand, one hundred eleven".

Divisors: 1 7 17 119 253120169 1771841183 4303042873 30121300111