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30242130 = 2351735827
BaseRepresentation
bin111001101011…
…1010101010010
32002220110101220
41303113111102
530220222010
63000105510
7515024322
oct163272522
962813356
1030242130
11160863a6
12a165296
13635b269
144033282
1529c5970
hex1cd7552

30242130 has 32 divisors (see below), whose sum is σ = 73013184. Its totient is φ = 8016576.

The previous prime is 30242123. The next prime is 30242131. The reversal of 30242130 is 3124203.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (30242131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2277 + ... + 8103.

It is an arithmetic number, because the mean of its divisors is an integer number (2281662).

Almost surely, 230242130 is an apocalyptic number.

30242130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30242130 is an abundant number, since it is smaller than the sum of its proper divisors (42771054).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30242130 is a wasteful number, since it uses less digits than its factorization.

30242130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6010.

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

The square root of 30242130 is about 5499.2844989144. The cubic root of 30242130 is about 311.5569607624.

Adding to 30242130 its reverse (3124203), we get a palindrome (33366333).

The spelling of 30242130 in words is "thirty million, two hundred forty-two thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 173 346 519 865 1038 1730 2595 5190 5827 11654 17481 29135 34962 58270 87405 174810 1008071 2016142 3024213 5040355 6048426 10080710 15121065 30242130