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19492029 = 3343103163
BaseRepresentation
bin100101001011…
…0110010111101
31100200022001000
41022112302331
514442221104
61533440513
7324452034
oct112266275
940608030
1019492029
1110003717
126640139
13406615b
14283571b
151aa0639
hex1296cbd

19492029 has 32 divisors (see below), whose sum is σ = 30018560. Its totient is φ = 12492144.

The previous prime is 19492027. The next prime is 19492037. The reversal of 19492029 is 92029491.

It is not a de Polignac number, because 19492029 - 21 = 19492027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19491984 and 19492002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19492027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 119502 + ... + 119664.

It is an arithmetic number, because the mean of its divisors is an integer number (938080).

Almost surely, 219492029 is an apocalyptic number.

It is an amenable number.

19492029 is a deficient number, since it is larger than the sum of its proper divisors (10526531).

19492029 is a wasteful number, since it uses less digits than its factorization.

19492029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 312 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 19492029 is about 4414.9778028887. The cubic root of 19492029 is about 269.1239507447.

The spelling of 19492029 in words is "nineteen million, four hundred ninety-two thousand, twenty-nine".

Divisors: 1 3 9 27 43 103 129 163 309 387 489 927 1161 1467 2781 4401 4429 7009 13287 16789 21027 39861 50367 63081 119583 151101 189243 453303 721927 2165781 6497343 19492029