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228629943 = 3225403327
BaseRepresentation
bin11011010000010…
…01110110110111
3120221012121022200
431220021312313
5432012124233
634404155543
75444215413
oct1550116667
9527177280
10228629943
11108068073
1264698bb3
133849c7b9
1422515d43
1515112313
hexda09db7

228629943 has 6 divisors (see below), whose sum is σ = 330243264. Its totient is φ = 152419956.

The previous prime is 228629927. The next prime is 228629953. The reversal of 228629943 is 349926822.

It is not a de Polignac number, because 228629943 - 24 = 228629927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228629953) 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, 12701655 + ... + 12701672.

It is an arithmetic number, because the mean of its divisors is an integer number (55040544).

Almost surely, 2228629943 is an apocalyptic number.

228629943 is a deficient number, since it is larger than the sum of its proper divisors (101613321).

228629943 is a wasteful number, since it uses less digits than its factorization.

228629943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25403333 (or 25403330 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 228629943 is about 15120.5139793593. The cubic root of 228629943 is about 611.4735877691.

The spelling of 228629943 in words is "two hundred twenty-eight million, six hundred twenty-nine thousand, nine hundred forty-three".

Divisors: 1 3 9 25403327 76209981 228629943