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228835057 = 11471133917
BaseRepresentation
bin11011010001110…
…11111011110001
3120221121000200111
431220323323301
5432040210212
634412421321
75446031413
oct1550737361
9527530614
10228835057
11108198190
1264777841
1338541c79
142256a9b3
1515152ea7
hexda3bef1

228835057 has 16 divisors (see below), whose sum is σ = 257271552. Its totient is φ = 201752320.

The previous prime is 228835039. The next prime is 228835097. The reversal of 228835057 is 750538822.

It is not a de Polignac number, because 228835057 - 27 = 228834929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228835097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56463 + ... + 60379.

It is an arithmetic number, because the mean of its divisors is an integer number (16079472).

Almost surely, 2228835057 is an apocalyptic number.

It is an amenable number.

228835057 is a deficient number, since it is larger than the sum of its proper divisors (28436495).

228835057 is a wasteful number, since it uses less digits than its factorization.

228835057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4088.

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 228835057 is about 15127.2950985958. The cubic root of 228835057 is about 611.6563930824.

The spelling of 228835057 in words is "two hundred twenty-eight million, eight hundred thirty-five thousand, fifty-seven".

Divisors: 1 11 47 113 517 1243 3917 5311 43087 58421 184099 442621 2025089 4868831 20803187 228835057