Search a number
-
+
19029999 = 350312611
BaseRepresentation
bin100100010010…
…1111111101111
31022210211020210
41020211333233
514332424444
61515513503
7320516022
oct110457757
938724223
1019029999
11a81857a
126458893
133c33a71
1427551b9
151a0d7b9
hex1225fef

19029999 has 8 divisors (see below), whose sum is σ = 25425792. Its totient is φ = 12660440.

The previous prime is 19029979. The next prime is 19030019. The reversal of 19029999 is 99992091.

It is an interprime number because it is at equal distance from previous prime (19029979) and next prime (19030019).

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

It is a cyclic number.

It is not a de Polignac number, because 19029999 - 211 = 19027951 is a prime.

19029999 is a modest number, since divided by 9999 gives 1902 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19029929) 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, 4797 + ... + 7814.

It is an arithmetic number, because the mean of its divisors is an integer number (3178224).

Almost surely, 219029999 is an apocalyptic number.

19029999 is a deficient number, since it is larger than the sum of its proper divisors (6395793).

19029999 is a wasteful number, since it uses less digits than its factorization.

19029999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13117.

The product of its (nonzero) digits is 118098, while the sum is 48.

The square root of 19029999 is about 4362.3387076200. The cubic root of 19029999 is about 266.9805285356.

The spelling of 19029999 in words is "nineteen million, twenty-nine thousand, nine hundred ninety-nine".

Divisors: 1 3 503 1509 12611 37833 6343333 19029999