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19488030 = 2354315107
BaseRepresentation
bin100101001010…
…1110100011110
31100200002112220
41022111310132
514442104110
61533410210
7324434262
oct112256436
940602486
1019488030
1110000711
126639966
1340643a3
1428340a2
151a9e370
hex1295d1e

19488030 has 32 divisors (see below), whose sum is σ = 47862144. Its totient is φ = 5075616.

The previous prime is 19488019. The next prime is 19488041. The reversal of 19488030 is 3088491.

It is an interprime number because it is at equal distance from previous prime (19488019) and next prime (19488041).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 19487982 and 19488000.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 6264 + ... + 8843.

It is an arithmetic number, because the mean of its divisors is an integer number (1495692).

Almost surely, 219488030 is an apocalyptic number.

19488030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19488030 is an abundant number, since it is smaller than the sum of its proper divisors (28374114).

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

19488030 is a wasteful number, since it uses less digits than its factorization.

19488030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15160.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 19488030 is about 4414.5248894983. The cubic root of 19488030 is about 269.1055449255.

The spelling of 19488030 in words is "nineteen million, four hundred eighty-eight thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 43 86 129 215 258 430 645 1290 15107 30214 45321 75535 90642 151070 226605 453210 649601 1299202 1948803 3248005 3897606 6496010 9744015 19488030