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228936130 = 251910711261
BaseRepresentation
bin11011010010101…
…00100111000010
3120221210011022221
431221110213002
5432101424010
634414521254
75446632163
oct1551244702
9527704287
10228936130
11108257115
126480622a
1338578c87
142259576a
1515172dda
hexda549c2

228936130 has 32 divisors (see below), whose sum is σ = 437866560. Its totient is φ = 85936320.

The previous prime is 228936101. The next prime is 228936139. The reversal of 228936130 is 31639822.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (228936139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14700 + ... + 25960.

It is an arithmetic number, because the mean of its divisors is an integer number (13683330).

Almost surely, 2228936130 is an apocalyptic number.

228936130 is a deficient number, since it is larger than the sum of its proper divisors (208930430).

228936130 is a wasteful number, since it uses less digits than its factorization.

228936130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11394.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 228936130 is about 15130.6354790537. The cubic root of 228936130 is about 611.7464329677.

The spelling of 228936130 in words is "two hundred twenty-eight million, nine hundred thirty-six thousand, one hundred thirty".

Divisors: 1 2 5 10 19 38 95 107 190 214 535 1070 2033 4066 10165 11261 20330 22522 56305 112610 213959 427918 1069795 1204927 2139590 2409854 6024635 12049270 22893613 45787226 114468065 228936130