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228897964 = 2271979589
BaseRepresentation
bin11011010010010…
…11010010101100
3120221201012222101
431221023102230
5432044213324
634414024444
75446413001
oct1551132254
9527635871
10228897964
11108230479
12647a8124
13385647a9
14225858a8
1515166944
hexda4b4ac

228897964 has 12 divisors (see below), whose sum is σ = 401133600. Its totient is φ = 114288368.

The previous prime is 228897961. The next prime is 228897967. The reversal of 228897964 is 469798822.

228897964 is digitally balanced in base 2, 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 (228897961) and next prime (228897967).

It is not an unprimeable number, because it can be changed into a prime (228897961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36919 + ... + 42670.

It is an arithmetic number, because the mean of its divisors is an integer number (33427800).

Almost surely, 2228897964 is an apocalyptic number.

It is an amenable number.

228897964 is a deficient number, since it is larger than the sum of its proper divisors (172235636).

228897964 is a wasteful number, since it uses less digits than its factorization.

228897964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80312 (or 80310 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 55.

The square root of 228897964 is about 15129.3742104556. The cubic root of 228897964 is about 611.7124362777.

The spelling of 228897964 in words is "two hundred twenty-eight million, eight hundred ninety-seven thousand, nine hundred sixty-four".

Divisors: 1 2 4 719 1438 2876 79589 159178 318356 57224491 114448982 228897964