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228887052 = 22319073921
BaseRepresentation
bin11011010010010…
…00101000001100
3120221200200000020
431221020220030
5432043341202
634413502140
75446336122
oct1551105014
9527620006
10228887052
11108223259
12647a1950
133855c834
1422581912
15151635bc
hexda48a0c

228887052 has 12 divisors (see below), whose sum is σ = 534069816. Its totient is φ = 76295680.

The previous prime is 228887041. The next prime is 228887081. The reversal of 228887052 is 250788822.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×2288870523 (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 228886995 and 228887013.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 9536949 + ... + 9536972.

It is an arithmetic number, because the mean of its divisors is an integer number (44505818).

Almost surely, 2228887052 is an apocalyptic number.

It is an amenable number.

228887052 is an abundant number, since it is smaller than the sum of its proper divisors (305182764).

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

228887052 is a wasteful number, since it uses less digits than its factorization.

228887052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19073928 (or 19073926 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 42.

The square root of 228887052 is about 15129.0135831785. The cubic root of 228887052 is about 611.7027156260.

The spelling of 228887052 in words is "two hundred twenty-eight million, eight hundred eighty-seven thousand, fifty-two".

Divisors: 1 2 3 4 6 12 19073921 38147842 57221763 76295684 114443526 228887052