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228357741 = 3412816607
BaseRepresentation
bin11011001110001…
…11011001101101
3120220200202221010
431213013121231
5431424421431
634354255433
75442003003
oct1547073155
9526622833
10228357741
111079a1607
1264587579
1338405931
1422484a73
15150ab846
hexd9c766d

228357741 has 16 divisors (see below), whose sum is σ = 313060608. Its totient is φ = 147974400.

The previous prime is 228357739. The next prime is 228357799. The reversal of 228357741 is 147753822.

It is not a de Polignac number, because 228357741 - 21 = 228357739 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228357741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228357721) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 31260 + ... + 37866.

It is an arithmetic number, because the mean of its divisors is an integer number (19566288).

Almost surely, 2228357741 is an apocalyptic number.

It is an amenable number.

228357741 is a deficient number, since it is larger than the sum of its proper divisors (84702867).

228357741 is a wasteful number, since it uses less digits than its factorization.

228357741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6932.

The product of its digits is 94080, while the sum is 39.

The square root of 228357741 is about 15111.5102157263. The cubic root of 228357741 is about 611.2308222035.

Subtracting from 228357741 its product of digits (94080), we obtain a triangular number (228263661 = T21366).

The spelling of 228357741 in words is "two hundred twenty-eight million, three hundred fifty-seven thousand, seven hundred forty-one".

Divisors: 1 3 41 123 281 843 6607 11521 19821 34563 270887 812661 1856567 5569701 76119247 228357741