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228076677 = 3229230133
BaseRepresentation
bin11011001100000…
…10110010000101
3120220011111101100
431212002302011
5431341423202
634344250313
75436422403
oct1546026205
9526144340
10228076677
1110781a424
1264470999
1338337a1a
1422410473
151505341c
hexd982c85

228076677 has 18 divisors (see below), whose sum is σ = 341207282. Its totient is φ = 146803104.

The previous prime is 228076669. The next prime is 228076679. The reversal of 228076677 is 776670822.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 22268961 + 205807716 = 4719^2 + 14346^2 .

It is not a de Polignac number, because 228076677 - 23 = 228076669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228076679) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7498 + ... + 22635.

Almost surely, 2228076677 is an apocalyptic number.

It is an amenable number.

228076677 is a deficient number, since it is larger than the sum of its proper divisors (113130605).

228076677 is a wasteful number, since it uses less digits than its factorization.

228076677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30197 (or 30165 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 45.

The square root of 228076677 is about 15102.2076862954. The cubic root of 228076677 is about 610.9799504655.

The spelling of 228076677 in words is "two hundred twenty-eight million, seventy-six thousand, six hundred seventy-seven".

Divisors: 1 3 9 29 87 261 841 2523 7569 30133 90399 271197 873857 2621571 7864713 25341853 76025559 228076677