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30112254 = 2327972099
BaseRepresentation
bin111001011011…
…1100111111110
32002122212020200
41302313213332
530202043004
62553224330
7513643554
oct162674776
962585220
1030112254
1115aa7867
12a1020a6
136314103
143ddbbd4
15299c239
hex1cb79fe

30112254 has 24 divisors (see below), whose sum is σ = 65356200. Its totient is φ = 10020048.

The previous prime is 30112249. The next prime is 30112259. The reversal of 30112254 is 45221103.

It is an interprime number because it is at equal distance from previous prime (30112249) and next prime (30112259).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30112259) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13297 + ... + 15395.

It is an arithmetic number, because the mean of its divisors is an integer number (2723175).

Almost surely, 230112254 is an apocalyptic number.

30112254 is an abundant number, since it is smaller than the sum of its proper divisors (35243946).

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

30112254 is a wasteful number, since it uses less digits than its factorization.

30112254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2904 (or 2901 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 30112254 is about 5487.4633483970. The cubic root of 30112254 is about 311.1103229666.

Adding to 30112254 its reverse (45221103), we get a palindrome (75333357).

The spelling of 30112254 in words is "thirty million, one hundred twelve thousand, two hundred fifty-four".

Divisors: 1 2 3 6 9 18 797 1594 2099 2391 4198 4782 6297 7173 12594 14346 18891 37782 1672903 3345806 5018709 10037418 15056127 30112254