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1384275844 = 22749438423
BaseRepresentation
bin101001010000010…
…0101111110000100
310120110202111110201
41102200211332010
510313333311334
6345205500244
746206102430
oct12240457604
93513674421
101384275844
11650429a26
12327711684
13190a34643
14d1bbb9c0
15817dac14
hex52825f84

1384275844 has 12 divisors (see below), whose sum is σ = 2768551744. Its totient is φ = 593261064.

The previous prime is 1384275833. The next prime is 1384275899. The reversal of 1384275844 is 4485724831.

1384275844 is an admirable number.

It is a super-2 number, since 2×13842758442 = 3832439224563824672, which contains 22 as substring.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1384275794 and 1384275803.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 24719184 + ... + 24719239.

Almost surely, 21384275844 is an apocalyptic number.

1384275844 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1384275844 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1384275844 is a wasteful number, since it uses less digits than its factorization.

1384275844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49438434 (or 49438432 counting only the distinct ones).

The product of its digits is 860160, while the sum is 46.

The square root of 1384275844 is about 37205.8576570948. The cubic root of 1384275844 is about 1114.4849636587.

The spelling of 1384275844 in words is "one billion, three hundred eighty-four million, two hundred seventy-five thousand, eight hundred forty-four".

Divisors: 1 2 4 7 14 28 49438423 98876846 197753692 346068961 692137922 1384275844