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228508030 = 25115119853
BaseRepresentation
bin11011001111011…
…00000101111110
3120220222102002101
431213230011332
5431444224110
634401415314
75443200112
oct1547540576
9526872071
10228508030
11107a94513
126463a53a
133845916a
14224c3742
15150db13a
hexd9ec17e

228508030 has 16 divisors (see below), whose sum is σ = 411692544. Its totient is φ = 91319200.

The previous prime is 228507973. The next prime is 228508043. The reversal of 228508030 is 30805822.

It is a self number, because there is not a number n which added to its sum of digits gives 228508030.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1584 + ... + 21436.

It is an arithmetic number, because the mean of its divisors is an integer number (25730784).

Almost surely, 2228508030 is an apocalyptic number.

228508030 is a deficient number, since it is larger than the sum of its proper divisors (183184514).

228508030 is a wasteful number, since it uses less digits than its factorization.

228508030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21011.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 228508030 is about 15116.4820642900. The cubic root of 228508030 is about 611.3648825070.

The spelling of 228508030 in words is "two hundred twenty-eight million, five hundred eight thousand, thirty".

Divisors: 1 2 5 10 1151 2302 5755 11510 19853 39706 99265 198530 22850803 45701606 114254015 228508030