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19468368 = 2432135197
BaseRepresentation
bin100101001000…
…1000001010000
31100122002120200
41022101001100
514440441433
61533135200
7324323043
oct112210120
940562520
1019468368
11aa97967
12662a500
13405845a
14282ac5a
151a98613
hex1291050

19468368 has 30 divisors (see below), whose sum is σ = 54484794. Its totient is φ = 6489408.

The previous prime is 19468357. The next prime is 19468409. The reversal of 19468368 is 86386491.

It can be written as a sum of positive squares in only one way, i.e., 12873744 + 6594624 = 3588^2 + 2568^2 .

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67455 + ... + 67742.

Almost surely, 219468368 is an apocalyptic number.

19468368 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

19468368 is an abundant number, since it is smaller than the sum of its proper divisors (35016426).

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

19468368 is a wasteful number, since it uses less digits than its factorization.

19468368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135211 (or 135202 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 19468368 is about 4412.2973607861. The cubic root of 19468368 is about 269.0150118532.

The spelling of 19468368 in words is "nineteen million, four hundred sixty-eight thousand, three hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 135197 270394 405591 540788 811182 1081576 1216773 1622364 2163152 2433546 3244728 4867092 6489456 9734184 19468368