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19029386 = 214963857
BaseRepresentation
bin100100010010…
…1110110001010
31022210210102002
41020211312022
514332420021
61515511002
7320514155
oct110456612
938723362
1019029386
11a818072
126458462
133c336bc
142754c9c
151a0d50b
hex1225d8a

19029386 has 8 divisors (see below), whose sum is σ = 28736100. Its totient is φ = 9450688.

The previous prime is 19029383. The next prime is 19029389. The reversal of 19029386 is 68392091.

It is an interprime number because it is at equal distance from previous prime (19029383) and next prime (19029389).

It can be written as a sum of positive squares in 2 ways, for example, as 18705625 + 323761 = 4325^2 + 569^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (19029383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31631 + ... + 32226.

Almost surely, 219029386 is an apocalyptic number.

19029386 is a deficient number, since it is larger than the sum of its proper divisors (9706714).

19029386 is a wasteful number, since it uses less digits than its factorization.

19029386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64008.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 19029386 is about 4362.2684465768. The cubic root of 19029386 is about 266.9776618193.

The spelling of 19029386 in words is "nineteen million, twenty-nine thousand, three hundred eighty-six".

Divisors: 1 2 149 298 63857 127714 9514693 19029386