Base | Representation |
---|---|
bin | 111001011010… |
… | …0101111001111 |
3 | 2002122021000210 |
4 | 1302310233033 |
5 | 30201203211 |
6 | 2553053503 |
7 | 513564234 |
oct | 162645717 |
9 | 62567023 |
10 | 30100431 |
11 | 15a99999 |
12 | a0b7293 |
13 | 630b90a |
14 | 3dd778b |
15 | 29989a6 |
hex | 1cb4bcf |
30100431 has 8 divisors (see below), whose sum is σ = 40238640. Its totient is φ = 20014592.
The previous prime is 30100417. The next prime is 30100453. The reversal of 30100431 is 13400103.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30100431 - 27 = 30100303 is a prime.
It is a super-2 number, since 2×301004312 = 1812071892771522, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30100471) 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, 11730 + ... + 14063.
It is an arithmetic number, because the mean of its divisors is an integer number (5029830).
Almost surely, 230100431 is an apocalyptic number.
30100431 is a deficient number, since it is larger than the sum of its proper divisors (10138209).
30100431 is a wasteful number, since it uses less digits than its factorization.
30100431 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 26185.
The product of its (nonzero) digits is 36, while the sum is 12.
The square root of 30100431 is about 5486.3859689234. The cubic root of 30100431 is about 311.0696004659.
Adding to 30100431 its reverse (13400103), we get a palindrome (43500534).
The spelling of 30100431 in words is "thirty million, one hundred thousand, four hundred thirty-one".
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