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1384021130 = 25138402113
BaseRepresentation
bin101001001111110…
…0111110010001010
310120110021120001212
41102133213302022
510313302134010
6345200213122
746203662012
oct12237476212
93513246055
101384021130
11650275618
1232760a1a2
1319097571b
14d1b52c42
158178a505
hex527e7c8a

1384021130 has 8 divisors (see below), whose sum is σ = 2491238052. Its totient is φ = 553608448.

The previous prime is 1384021127. The next prime is 1384021141. The reversal of 1384021130 is 311204831.

It can be written as a sum of positive squares in 2 ways, for example, as 1300828489 + 83192641 = 36067^2 + 9121^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×13840211303 (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1384021096 and 1384021105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69201047 + ... + 69201066.

Almost surely, 21384021130 is an apocalyptic number.

1384021130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1384021130 is a deficient number, since it is larger than the sum of its proper divisors (1107216922).

1384021130 is a wasteful number, since it uses less digits than its factorization.

1384021130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138402120.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1384021130 is about 37202.4344633520. The cubic root of 1384021130 is about 1114.4166024436.

Adding to 1384021130 its reverse (311204831), we get a palindrome (1695225961).

The spelling of 1384021130 in words is "one billion, three hundred eighty-four million, twenty-one thousand, one hundred thirty".

Divisors: 1 2 5 10 138402113 276804226 692010565 1384021130