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228258151 = 1122716961
BaseRepresentation
bin11011001101011…
…11000101100111
3120220111201022121
431212233011213
5431413230101
634352210411
75441106442
oct1546570547
9526451277
10228258151
11107933800
1264539a07
133839c4c4
142245a659
151508c0a1
hexd9af167

228258151 has 12 divisors (see below), whose sum is σ = 251857312. Its totient is φ = 206712000.

The previous prime is 228258137. The next prime is 228258161. The reversal of 228258151 is 151852822.

It is a happy number.

It is not a de Polignac number, because 228258151 - 25 = 228258119 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228258161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29311 + ... + 36271.

Almost surely, 2228258151 is an apocalyptic number.

228258151 is a deficient number, since it is larger than the sum of its proper divisors (23599161).

228258151 is a wasteful number, since it uses less digits than its factorization.

228258151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7254 (or 7243 counting only the distinct ones).

The product of its digits is 12800, while the sum is 34.

The square root of 228258151 is about 15108.2146860574. The cubic root of 228258151 is about 611.1419538508.

It can be divided in two parts, 22825 and 8151, that added together give a square (30976 = 1762).

The spelling of 228258151 in words is "two hundred twenty-eight million, two hundred fifty-eight thousand, one hundred fifty-one".

Divisors: 1 11 121 271 2981 6961 32791 76571 842281 1886431 20750741 228258151