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228101408 = 2523330593
BaseRepresentation
bin11011001100010…
…00110100100000
3120220012202022022
431212020310200
5431343221113
634345001012
75436554453
oct1546106440
9526182268
10228101408
11107836a67
1264483168
1338346062
142241949a
151505a908
hexd988d20

228101408 has 24 divisors (see below), whose sum is σ = 451016748. Its totient is φ = 113557504.

The previous prime is 228101407. The next prime is 228101413. The reversal of 228101408 is 804101822.

It can be written as a sum of positive squares in 2 ways, for example, as 227044624 + 1056784 = 15068^2 + 1028^2 .

It is not an unprimeable number, because it can be changed into a prime (228101407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7841 + ... + 22752.

Almost surely, 2228101408 is an apocalyptic number.

It is an amenable number.

228101408 is a deficient number, since it is larger than the sum of its proper divisors (222915340).

228101408 is a wasteful number, since it uses less digits than its factorization.

228101408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30836 (or 30828 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 228101408 is about 15103.0264516752. The cubic root of 228101408 is about 611.0020330961.

The spelling of 228101408 in words is "two hundred twenty-eight million, one hundred one thousand, four hundred eight".

Divisors: 1 2 4 8 16 32 233 466 932 1864 3728 7456 30593 61186 122372 244744 489488 978976 7128169 14256338 28512676 57025352 114050704 228101408