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19384948 = 2211440567
BaseRepresentation
bin100100111110…
…0101001110100
31100110212011001
41021330221310
514430304243
61531253044
7323524612
oct111745164
940425131
1019384948
11aa40220
1265aa184
1340294ab
1428086b2
151a7da4d
hex127ca74

19384948 has 12 divisors (see below), whose sum is σ = 37007712. Its totient is φ = 8811320.

The previous prime is 19384943. The next prime is 19384949. The reversal of 19384948 is 84948391.

It is a junction number, because it is equal to n+sod(n) for n = 19384898 and 19384907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19384943) by changing a digit.

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, 220240 + ... + 220327.

It is an arithmetic number, because the mean of its divisors is an integer number (3083976).

Almost surely, 219384948 is an apocalyptic number.

It is an amenable number.

19384948 is a deficient number, since it is larger than the sum of its proper divisors (17622764).

19384948 is a wasteful number, since it uses less digits than its factorization.

19384948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440582 (or 440580 counting only the distinct ones).

The product of its digits is 248832, while the sum is 46.

The square root of 19384948 is about 4402.8340872670. The cubic root of 19384948 is about 268.6302276464.

It can be divided in two parts, 1938 and 4948, that added together give a palindrome (6886).

The spelling of 19384948 in words is "nineteen million, three hundred eighty-four thousand, nine hundred forty-eight".

Divisors: 1 2 4 11 22 44 440567 881134 1762268 4846237 9692474 19384948