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228723968 = 281181223
BaseRepresentation
bin11011010001000…
…00110100000000
3120221101101022002
431220200310000
5432023131333
634410203132
75445056504
oct1550406400
9527341262
10228723968
11108121780
12647234a8
1338503535
142253c304
15151300e8
hexda20d00

228723968 has 36 divisors (see below), whose sum is σ = 498065568. Its totient is φ = 103964160.

The previous prime is 228723959. The next prime is 228723977. The reversal of 228723968 is 869327822.

228723968 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (228723959) and next prime (228723977).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37796 + ... + 43427.

Almost surely, 2228723968 is an apocalyptic number.

It is an amenable number.

228723968 is an abundant number, since it is smaller than the sum of its proper divisors (269341600).

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

228723968 is an equidigital number, since it uses as much as digits as its factorization.

228723968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81250 (or 81236 counting only the distinct ones).

The product of its digits is 580608, while the sum is 47.

The square root of 228723968 is about 15123.6228463950. The cubic root of 228723968 is about 611.5573999529.

The spelling of 228723968 in words is "two hundred twenty-eight million, seven hundred twenty-three thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 11 16 22 32 44 64 88 128 176 256 352 704 1408 2816 81223 162446 324892 649784 893453 1299568 1786906 2599136 3573812 5198272 7147624 10396544 14295248 20793088 28590496 57180992 114361984 228723968