Search a number
-
+
228077447 = 1331678447
BaseRepresentation
bin11011001100000…
…10111110000111
3120220011112102212
431212002332013
5431341434242
634344254035
75436424553
oct1546027607
9526145385
10228077447
1110781aa64
126447131b
1338338190
1422410863
1515053782
hexd982f87

228077447 has 16 divisors (see below), whose sum is σ = 257359872. Its totient is φ = 200676960.

The previous prime is 228077441. The next prime is 228077449. The reversal of 228077447 is 744770822.

It is a cyclic number.

It is not a de Polignac number, because 228077447 - 214 = 228061063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228077441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22778 + ... + 31224.

It is an arithmetic number, because the mean of its divisors is an integer number (16084992).

Almost surely, 2228077447 is an apocalyptic number.

228077447 is a deficient number, since it is larger than the sum of its proper divisors (29282425).

228077447 is a wasteful number, since it uses less digits than its factorization.

228077447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8558.

The product of its (nonzero) digits is 175616, while the sum is 41.

The square root of 228077447 is about 15102.2331792354. The cubic root of 228077447 is about 610.9806380325.

The spelling of 228077447 in words is "two hundred twenty-eight million, seventy-seven thousand, four hundred forty-seven".

Divisors: 1 13 31 67 403 871 2077 8447 27001 109811 261857 565949 3404141 7357337 17544419 228077447