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30141311 = 31795083
BaseRepresentation
bin111001011111…
…0101101111111
32002201100002212
41302332231333
530204010221
62554011035
7514124354
oct162765577
962640085
1030141311
1116017682
12a116a7b
1363243c5
14400862b
1529a5b5b
hex1cbeb7f

30141311 has 4 divisors (see below), whose sum is σ = 30236712. Its totient is φ = 30045912.

The previous prime is 30141299. The next prime is 30141317. The reversal of 30141311 is 11314103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11314103 = 39728499.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30141311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30141317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47225 + ... + 47858.

It is an arithmetic number, because the mean of its divisors is an integer number (7559178).

Almost surely, 230141311 is an apocalyptic number.

30141311 is a deficient number, since it is larger than the sum of its proper divisors (95401).

30141311 is an equidigital number, since it uses as much as digits as its factorization.

30141311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95400.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 30141311 is about 5490.1102903312. The cubic root of 30141311 is about 311.2103600534.

Adding to 30141311 its reverse (11314103), we get a palindrome (41455414).

The spelling of 30141311 in words is "thirty million, one hundred forty-one thousand, three hundred eleven".

Divisors: 1 317 95083 30141311