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19433030 = 254794057
BaseRepresentation
bin100101000100…
…0011001000110
31100120022002212
41022020121012
514433324110
61532303422
7324115031
oct112103106
940508085
1019433030
11aa73361
126611b72
134045346
14281c018
151a8ce05
hex1288646

19433030 has 16 divisors (see below), whose sum is σ = 35061120. Its totient is φ = 7755072.

The previous prime is 19433021. The next prime is 19433047. The reversal of 19433030 is 3033491.

It is a junction number, because it is equal to n+sod(n) for n = 19432987 and 19433005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2762 + ... + 6818.

It is an arithmetic number, because the mean of its divisors is an integer number (2191320).

Almost surely, 219433030 is an apocalyptic number.

19433030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19433030 is a deficient number, since it is larger than the sum of its proper divisors (15628090).

19433030 is a wasteful number, since it uses less digits than its factorization.

19433030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4543.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 19433030 is about 4408.2910520972. The cubic root of 19433030 is about 268.8521457761.

The spelling of 19433030 in words is "nineteen million, four hundred thirty-three thousand, thirty".

Divisors: 1 2 5 10 479 958 2395 4057 4790 8114 20285 40570 1943303 3886606 9716515 19433030