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228055419 = 3423163751
BaseRepresentation
bin11011001011111…
…01100101111011
3120220010102020000
431211331211323
5431340233134
634344004043
75436303414
oct1545754573
9526112200
10228055419
11107805459
1264460623
133832b147
142240680b
151504be99
hexd97d97b

228055419 has 40 divisors (see below), whose sum is σ = 358144512. Its totient is φ = 144342000.

The previous prime is 228055397. The next prime is 228055427. The reversal of 228055419 is 914550822.

228055419 is a `hidden beast` number, since 22 + 80 + 554 + 1 + 9 = 666.

It is not a de Polignac number, because 228055419 - 29 = 228054907 is a prime.

It is a super-2 number, since 2×2280554192 = 104018548270531122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (228055319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 303294 + ... + 304044.

Almost surely, 2228055419 is an apocalyptic number.

228055419 is a deficient number, since it is larger than the sum of its proper divisors (130089093).

228055419 is a wasteful number, since it uses less digits than its factorization.

228055419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949 (or 940 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 228055419 is about 15101.5038655096. The cubic root of 228055419 is about 610.9609676458.

It can be divided in two parts, 22805 and 5419, that added together give a square (28224 = 1682).

The spelling of 228055419 in words is "two hundred twenty-eight million, fifty-five thousand, four hundred nineteen".

Divisors: 1 3 9 23 27 69 81 163 207 489 621 751 1467 1863 2253 3749 4401 6759 11247 13203 17273 20277 33741 51819 60831 101223 122413 155457 303669 367239 466371 1101717 1399113 2815499 3305151 8446497 9915453 25339491 76018473 228055419