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30285111 = 310095037
BaseRepresentation
bin111001110000…
…1110100110111
32002222122100210
41303201310313
530223110421
63001040503
7515263533
oct163416467
962878323
1030285111
111610571a
12a186133
1363749ac
144044bc3
1529d3576
hex1ce1d37

30285111 has 4 divisors (see below), whose sum is σ = 40380152. Its totient is φ = 20190072.

The previous prime is 30285023. The next prime is 30285131. The reversal of 30285111 is 11158203.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 30285111 - 27 = 30284983 is a prime.

It is a super-3 number, since 3×302851113 (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30285131) 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, 5047516 + ... + 5047521.

It is an arithmetic number, because the mean of its divisors is an integer number (10095038).

Almost surely, 230285111 is an apocalyptic number.

30285111 is a deficient number, since it is larger than the sum of its proper divisors (10095041).

30285111 is a wasteful number, since it uses less digits than its factorization.

30285111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10095040.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 30285111 is about 5503.1909834204. The cubic root of 30285111 is about 311.7044888501.

The spelling of 30285111 in words is "thirty million, two hundred eighty-five thousand, one hundred eleven".

Divisors: 1 3 10095037 30285111