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228858452 = 225310392
BaseRepresentation
bin11011010010000…
…01101001010100
3120221122012202222
431221001221110
5432041432302
634413121512
75446156544
oct1551015124
9527565688
10228858452
11108203819
1264789298
133854c804
1422575324
1515159da2
hexda41a54

228858452 has 18 divisors (see below), whose sum is σ = 408452058. Its totient is φ = 112162128.

The previous prime is 228858451. The next prime is 228858457. The reversal of 228858452 is 254858822.

It can be written as a sum of positive squares in only one way, i.e., 211586116 + 17272336 = 14546^2 + 4156^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228858451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 219749 + ... + 220787.

It is an arithmetic number, because the mean of its divisors is an integer number (22691781).

Almost surely, 2228858452 is an apocalyptic number.

It is an amenable number.

228858452 is a deficient number, since it is larger than the sum of its proper divisors (179593606).

228858452 is an equidigital number, since it uses as much as digits as its factorization.

228858452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135 (or 1094 counting only the distinct ones).

The product of its digits is 409600, while the sum is 44.

The square root of 228858452 is about 15128.0683499249. The cubic root of 228858452 is about 611.6772366452.

The spelling of 228858452 in words is "two hundred twenty-eight million, eight hundred fifty-eight thousand, four hundred fifty-two".

Divisors: 1 2 4 53 106 212 1039 2078 4156 55067 110134 220268 1079521 2159042 4318084 57214613 114429226 228858452