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30152133 = 32111512017
BaseRepresentation
bin111001100000…
…1010111000101
32002201212221200
41303001113011
530204332013
62554133113
7514201044
oct163012705
962655850
1030152133
1116024820
12a121199
1363292cb
14400c55b
1529a8e73
hex1cc15c5

30152133 has 24 divisors (see below), whose sum is σ = 47850816. Its totient is φ = 18144000.

The previous prime is 30152131. The next prime is 30152147. The reversal of 30152133 is 33125103.

It is not a de Polignac number, because 30152133 - 21 = 30152131 is a prime.

It is a super-2 number, since 2×301521332 = 1818302248899378, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30152131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13941 + ... + 15957.

It is an arithmetic number, because the mean of its divisors is an integer number (1993784).

Almost surely, 230152133 is an apocalyptic number.

30152133 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

30152133 is a deficient number, since it is larger than the sum of its proper divisors (17698683).

30152133 is a wasteful number, since it uses less digits than its factorization.

30152133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2185 (or 2182 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 30152133 is about 5491.0957922804. The cubic root of 30152133 is about 311.2476014718.

Adding to 30152133 its reverse (33125103), we get a palindrome (63277236).

The spelling of 30152133 in words is "thirty million, one hundred fifty-two thousand, one hundred thirty-three".

Divisors: 1 3 9 11 33 99 151 453 1359 1661 2017 4983 6051 14949 18153 22187 66561 199683 304567 913701 2741103 3350237 10050711 30152133