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19301028 = 2236312549
BaseRepresentation
bin100100110100…
…0001010100100
31100022121000220
41021220022210
514420113103
61525404340
7323025135
oct111501244
940277026
1019301028
11a99316a
1265696b0
133cca236
1427c5c8c
151a63c53
hex12682a4

19301028 has 24 divisors (see below), whose sum is σ = 45124800. Its totient is φ = 6420960.

The previous prime is 19301027. The next prime is 19301041. The reversal of 19301028 is 82010391.

It is a junction number, because it is equal to n+sod(n) for n = 19300989 and 19301007.

It is not an unprimeable number, because it can be changed into a prime (19301027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6298 + ... + 8846.

It is an arithmetic number, because the mean of its divisors is an integer number (1880200).

Almost surely, 219301028 is an apocalyptic number.

It is an amenable number.

19301028 is an abundant number, since it is smaller than the sum of its proper divisors (25823772).

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

19301028 is a wasteful number, since it uses less digits than its factorization.

19301028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3187 (or 3185 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 19301028 is about 4393.2935253634. The cubic root of 19301028 is about 268.2420216638.

The spelling of 19301028 in words is "nineteen million, three hundred one thousand, twenty-eight".

Divisors: 1 2 3 4 6 12 631 1262 1893 2524 2549 3786 5098 7572 7647 10196 15294 30588 1608419 3216838 4825257 6433676 9650514 19301028