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30102243 = 322744203
BaseRepresentation
bin111001011010…
…1001011100011
32002122100111220
41302311023203
530201232433
62553110123
7513602433
oct162651343
962570456
1030102243
1115aa0296
12a0b8343
13630c6a2
143dd82c3
1529992b3
hex1cb52e3

30102243 has 8 divisors (see below), whose sum is σ = 40314048. Its totient is φ = 19979304.

The previous prime is 30102227. The next prime is 30102263. The reversal of 30102243 is 34220103.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30102243 - 24 = 30102227 is a prime.

It is a super-2 number, since 2×301022432 = 1812290067262098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30102263) 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, 21421 + ... + 22782.

It is an arithmetic number, because the mean of its divisors is an integer number (5039256).

Almost surely, 230102243 is an apocalyptic number.

30102243 is a deficient number, since it is larger than the sum of its proper divisors (10211805).

30102243 is a wasteful number, since it uses less digits than its factorization.

30102243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44433.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 30102243 is about 5486.5511024687. The cubic root of 30102243 is about 311.0758423124.

Adding to 30102243 its reverse (34220103), we get a palindrome (64322346).

It can be divided in two parts, 3010 and 2243, that added together give a triangular number (5253 = T102).

The spelling of 30102243 in words is "thirty million, one hundred two thousand, two hundred forty-three".

Divisors: 1 3 227 681 44203 132609 10034081 30102243