Base | Representation |
---|---|
bin | 11011111110000111… |
… | …101100000010011111 |
3 | 2212112001211021011002 |
4 | 123332013230002133 |
5 | 443002001411111 |
6 | 21444100220515 |
7 | 2112152155145 |
oct | 337607540237 |
9 | 85461737132 |
10 | 30033232031 |
11 | 11811a81820 |
12 | 59a209a73b |
13 | 2aa822c21a |
14 | 164ca19595 |
15 | bab9e063b |
hex | 6fe1ec09f |
30033232031 has 16 divisors (see below), whose sum is σ = 34519979520. Its totient is φ = 25862279520.
The previous prime is 30033232007. The next prime is 30033232057. The reversal of 30033232031 is 13023233003.
It is not a de Polignac number, because 30033232031 - 26 = 30033231967 is a prime.
It is a super-2 number, since 2×300332320312 (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 = 30033231994 and 30033232012.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30033232091) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 550196 + ... + 602313.
It is an arithmetic number, because the mean of its divisors is an integer number (2157498720).
Almost surely, 230033232031 is an apocalyptic number.
30033232031 is a deficient number, since it is larger than the sum of its proper divisors (4486747489).
30033232031 is a wasteful number, since it uses less digits than its factorization.
30033232031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1152646.
The product of its (nonzero) digits is 972, while the sum is 20.
Adding to 30033232031 its product of nonzero digits (972), we get a palindrome (30033233003).
Adding to 30033232031 its reverse (13023233003), we get a palindrome (43056465034).
The spelling of 30033232031 in words is "thirty billion, thirty-three million, two hundred thirty-two thousand, thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •