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227890472 = 2328486309
BaseRepresentation
bin11011001010101…
…01010100101000
3120212211000221212
431211111110220
5431314443342
634340252252
75435015465
oct1545252450
9525730855
10227890472
11107702537
12643a1088
13382a1044
14223a266c
1515018182
hexd955528

227890472 has 8 divisors (see below), whose sum is σ = 427294650. Its totient is φ = 113945232.

The previous prime is 227890471. The next prime is 227890483. The reversal of 227890472 is 274098722.

It can be written as a sum of positive squares in only one way, i.e., 223622116 + 4268356 = 14954^2 + 2066^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (227890471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14243147 + ... + 14243162.

Almost surely, 2227890472 is an apocalyptic number.

It is an amenable number.

227890472 is a deficient number, since it is larger than the sum of its proper divisors (199404178).

227890472 is a wasteful number, since it uses less digits than its factorization.

227890472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28486315 (or 28486311 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 227890472 is about 15096.0416003666. The cubic root of 227890472 is about 610.8136343276.

The spelling of 227890472 in words is "two hundred twenty-seven million, eight hundred ninety thousand, four hundred seventy-two".

Divisors: 1 2 4 8 28486309 56972618 113945236 227890472