Base | Representation |
---|---|
bin | 111001100100… |
… | …1111110001001 |
3 | 2002210200022220 |
4 | 1303021332021 |
5 | 30211444101 |
6 | 2555004253 |
7 | 514405626 |
oct | 163117611 |
9 | 62720286 |
10 | 30187401 |
11 | 16049272 |
12 | a139689 |
13 | 633c38a |
14 | 401b34d |
15 | 29b4636 |
hex | 1cc9f89 |
30187401 has 8 divisors (see below), whose sum is σ = 40759680. Its totient is φ = 19870032.
The previous prime is 30187387. The next prime is 30187429. The reversal of 30187401 is 10478103.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30187401 - 26 = 30187337 is a prime.
It is a super-2 number, since 2×301874012 = 1822558358269602, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (30187481) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63450 + ... + 63923.
It is an arithmetic number, because the mean of its divisors is an integer number (5094960).
Almost surely, 230187401 is an apocalyptic number.
It is an amenable number.
30187401 is a deficient number, since it is larger than the sum of its proper divisors (10572279).
30187401 is a wasteful number, since it uses less digits than its factorization.
30187401 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 127455.
The product of its (nonzero) digits is 672, while the sum is 24.
The square root of 30187401 is about 5494.3062346396. The cubic root of 30187401 is about 311.3689063597.
The spelling of 30187401 in words is "thirty million, one hundred eighty-seven thousand, four hundred one".
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