Base | Representation |
---|---|
bin | 11100010111000001… |
… | …100010111001110000 |
3 | 2220121012000201121002 |
4 | 130113001202321300 |
5 | 444330432132034 |
6 | 21553343421132 |
7 | 2125414446452 |
oct | 342701427160 |
9 | 86535021532 |
10 | 30451052144 |
11 | 11a069091a7 |
12 | 5a99bb47a8 |
13 | 2b4396c966 |
14 | 168c2dc2d2 |
15 | bd3523e7e |
hex | 717062e70 |
30451052144 has 20 divisors (see below), whose sum is σ = 59006286600. Its totient is φ = 15223623360.
The previous prime is 30451052143. The next prime is 30451052167. The reversal of 30451052144 is 44125015403.
It is a super-3 number, since 3×304510521443 (a number of 32 digits) contains 333 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30451052141) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17882 + ... + 247430.
It is an arithmetic number, because the mean of its divisors is an integer number (2950314330).
Almost surely, 230451052144 is an apocalyptic number.
It is an amenable number.
30451052144 is a deficient number, since it is larger than the sum of its proper divisors (28555234456).
30451052144 is a wasteful number, since it uses less digits than its factorization.
30451052144 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 237848 (or 237842 counting only the distinct ones).
The product of its (nonzero) digits is 9600, while the sum is 29.
Adding to 30451052144 its reverse (44125015403), we get a palindrome (74576067547).
The spelling of 30451052144 in words is "thirty billion, four hundred fifty-one million, fifty-two thousand, one hundred forty-four".
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