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228794562 = 23212710809
BaseRepresentation
bin11011010001100…
…10000011000010
3120221111222010200
431220302003002
5432032411222
634411510030
75445502353
oct1550620302
9527458120
10228794562
1110816a817
1264758316
13385296c9
1422559d2a
1515145eac
hexda320c2

228794562 has 12 divisors (see below), whose sum is σ = 495721590. Its totient is φ = 76264848.

The previous prime is 228794557. The next prime is 228794567. The reversal of 228794562 is 265497822.

228794562 is a `hidden beast` number, since 2 + 2 + 87 + 9 + 4 + 562 = 666.

It is an interprime number because it is at equal distance from previous prime (228794557) and next prime (228794567).

It can be written as a sum of positive squares in only one way, i.e., 137381841 + 91412721 = 11721^2 + 9561^2 .

It is not an unprimeable number, because it can be changed into a prime (228794567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6355387 + ... + 6355422.

Almost surely, 2228794562 is an apocalyptic number.

228794562 is an abundant number, since it is smaller than the sum of its proper divisors (266927028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228794562 is a wasteful number, since it uses less digits than its factorization.

228794562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12710817 (or 12710814 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 228794562 is about 15125.9565647929. The cubic root of 228794562 is about 611.6203110718.

The spelling of 228794562 in words is "two hundred twenty-eight million, seven hundred ninety-four thousand, five hundred sixty-two".

Divisors: 1 2 3 6 9 18 12710809 25421618 38132427 76264854 114397281 228794562