Base | Representation |
---|---|
bin | 111001111100… |
… | …0000001011111 |
3 | 2010011021002012 |
4 | 1303320001133 |
5 | 30234013111 |
6 | 3003021435 |
7 | 516122600 |
oct | 163700137 |
9 | 63137065 |
10 | 30376031 |
11 | 16167a64 |
12 | a20a87b |
13 | 63a71aa |
14 | 4069da7 |
15 | 2a0048b |
hex | 1cf805f |
30376031 has 12 divisors (see below), whose sum is σ = 36873072. Its totient is φ = 24903648.
The previous prime is 30376019. The next prime is 30376037. The reversal of 30376031 is 13067303.
It is a de Polignac number, because none of the positive numbers 2k-30376031 is a prime.
It is a super-2 number, since 2×303760312 = 1845406518625922, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (23).
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30375988 and 30376006.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30376037) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12350 + ... + 14603.
It is an arithmetic number, because the mean of its divisors is an integer number (3072756).
Almost surely, 230376031 is an apocalyptic number.
30376031 is a deficient number, since it is larger than the sum of its proper divisors (6497041).
30376031 is a wasteful number, since it uses less digits than its factorization.
30376031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 26990 (or 26983 counting only the distinct ones).
The product of its (nonzero) digits is 1134, while the sum is 23.
The square root of 30376031 is about 5511.4454546879. The cubic root of 30376031 is about 312.0161035683.
The spelling of 30376031 in words is "thirty million, three hundred seventy-six thousand, thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •