Search a number
-
+
228077508 = 223171118027
BaseRepresentation
bin11011001100000…
…10111111000100
3120220011112112010
431212002333010
5431341440013
634344254220
75436425001
oct1546027704
9526145463
10228077508
1110782000a
1264471370
1338338209
14224108a8
15150537c3
hexd982fc4

228077508 has 24 divisors (see below), whose sum is σ = 563486112. Its totient is φ = 71553664.

The previous prime is 228077483. The next prime is 228077513. The reversal of 228077508 is 805770822.

228077508 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×2280775083 (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 558810 + ... + 559217.

It is an arithmetic number, because the mean of its divisors is an integer number (23478588).

Almost surely, 2228077508 is an apocalyptic number.

It is an amenable number.

228077508 is an abundant number, since it is smaller than the sum of its proper divisors (335408604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228077508 is a wasteful number, since it uses less digits than its factorization.

228077508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118051 (or 1118049 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 39.

The square root of 228077508 is about 15102.2351988042. The cubic root of 228077508 is about 610.9806925021.

The spelling of 228077508 in words is "two hundred twenty-eight million, seventy-seven thousand, five hundred eight".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 1118027 2236054 3354081 4472108 6708162 13416324 19006459 38012918 57019377 76025836 114038754 228077508