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228356253 = 34101103271
BaseRepresentation
bin11011001110001…
…11000010011101
3120220200200220000
431213013002131
5431424400003
634354244513
75441665446
oct1547070235
9526620800
10228356253
111079a0484
1264586739
1338405058
14224842cd
15150ab1a3
hexd9c709d

228356253 has 40 divisors (see below), whose sum is σ = 349130496. Its totient is φ = 148716000.

The previous prime is 228356251. The next prime is 228356263. The reversal of 228356253 is 352653822.

228356253 is a `hidden beast` number, since 2 + 28 + 3 + 5 + 625 + 3 = 666.

It is not a de Polignac number, because 228356253 - 21 = 228356251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228356251) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 842508 + ... + 842778.

Almost surely, 2228356253 is an apocalyptic number.

It is an amenable number.

228356253 is a deficient number, since it is larger than the sum of its proper divisors (120774243).

228356253 is a wasteful number, since it uses less digits than its factorization.

228356253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487 (or 478 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 228356253 is about 15111.4609816523. The cubic root of 228356253 is about 611.2294945886.

The spelling of 228356253 in words is "two hundred twenty-eight million, three hundred fifty-six thousand, two hundred fifty-three".

Divisors: 1 3 9 27 81 101 103 271 303 309 813 909 927 2439 2727 2781 7317 8181 8343 10403 21951 27371 27913 31209 82113 83739 93627 246339 251217 280881 739017 753651 842643 2217051 2260953 2819213 8457639 25372917 76118751 228356253