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227628105 = 35294112763
BaseRepresentation
bin11011001000101…
…01010001001001
3120212022201001120
431210111101021
5431233044410
634330505453
75432543535
oct1544252111
9525281046
10227628105
11107543401
1264295289
133820b7b3
1422334bc5
1514eb5570
hexd915449

227628105 has 32 divisors (see below), whose sum is σ = 385983360. Its totient is φ = 114347520.

The previous prime is 227628101. The next prime is 227628119. The reversal of 227628105 is 501826722.

It is not a de Polignac number, because 227628105 - 22 = 227628101 is a prime.

It is not an unprimeable number, because it can be changed into a prime (227628101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11454 + ... + 24216.

It is an arithmetic number, because the mean of its divisors is an integer number (12061980).

Almost surely, 2227628105 is an apocalyptic number.

It is an amenable number.

227628105 is a deficient number, since it is larger than the sum of its proper divisors (158355255).

227628105 is a wasteful number, since it uses less digits than its factorization.

227628105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12841.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 227628105 is about 15087.3491707457. The cubic root of 227628105 is about 610.5791373498.

It can be divided in two parts, 2276 and 28105, that added together give a triangular number (30381 = T246).

The spelling of 227628105 in words is "two hundred twenty-seven million, six hundred twenty-eight thousand, one hundred five".

Divisors: 1 3 5 15 29 41 87 123 145 205 435 615 1189 3567 5945 12763 17835 38289 63815 191445 370127 523283 1110381 1569849 1850635 2616415 5551905 7849245 15175207 45525621 75876035 227628105