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30262228 = 2254713831
BaseRepresentation
bin111001101110…
…0001111010100
32002221110222021
41303130033110
530221342403
63000342524
7515140033
oct163341724
962843867
1030262228
111609a507
12a174a44
136367459
14403a71a
1529cb8bd
hex1cdc3d4

30262228 has 12 divisors (see below), whose sum is σ = 53059552. Its totient is φ = 15102360.

The previous prime is 30262213. The next prime is 30262229. The reversal of 30262228 is 82226203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30262229) 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, 4728 + ... + 9103.

Almost surely, 230262228 is an apocalyptic number.

It is an amenable number.

30262228 is a deficient number, since it is larger than the sum of its proper divisors (22797324).

30262228 is a wasteful number, since it uses less digits than its factorization.

30262228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14382 (or 14380 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 30262228 is about 5501.1115240468. Note that the first 3 decimals coincide. The cubic root of 30262228 is about 311.6259625732.

The spelling of 30262228 in words is "thirty million, two hundred sixty-two thousand, two hundred twenty-eight".

Divisors: 1 2 4 547 1094 2188 13831 27662 55324 7565557 15131114 30262228