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1384041228 = 223115336769
BaseRepresentation
bin101001001111110…
…1100101100001100
310120110022120122020
41102133230230030
510313303304403
6345200450140
746204104423
oct12237545414
93513276566
101384041228
11650289729
12327619950
1319098190b
14d1b5a2ba
1581791453
hex527ecb0c

1384041228 has 12 divisors (see below), whose sum is σ = 3229429560. Its totient is φ = 461347072.

The previous prime is 1384041227. The next prime is 1384041233. The reversal of 1384041228 is 8221404831.

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

It is a super-3 number, since 3×13840412283 (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1384041227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57668373 + ... + 57668396.

It is an arithmetic number, because the mean of its divisors is an integer number (269119130).

Almost surely, 21384041228 is an apocalyptic number.

It is an amenable number.

1384041228 is an abundant number, since it is smaller than the sum of its proper divisors (1845388332).

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

1384041228 is a wasteful number, since it uses less digits than its factorization.

1384041228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115336776 (or 115336774 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 1384041228 is about 37202.7045791028. The cubic root of 1384041228 is about 1114.4219967342.

The spelling of 1384041228 in words is "one billion, three hundred eighty-four million, forty-one thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 12 115336769 230673538 346010307 461347076 692020614 1384041228