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19315429 = 711324419
BaseRepresentation
bin100100110101…
…1101011100101
31100100022210021
41021223223211
514421043204
61525555141
7323115130
oct111535345
940308707
1019315429
11a9a2a71
126575ab1
134003963
1427cb217
151a68154
hex126bae5

19315429 has 8 divisors (see below), whose sum is σ = 22271040. Its totient is φ = 16408896.

The previous prime is 19315411. The next prime is 19315433. The reversal of 19315429 is 92451391.

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

It is not a de Polignac number, because 19315429 - 25 = 19315397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19315394 and 19315403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19315409) 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, 11419 + ... + 13000.

It is an arithmetic number, because the mean of its divisors is an integer number (2783880).

Almost surely, 219315429 is an apocalyptic number.

It is an amenable number.

19315429 is a deficient number, since it is larger than the sum of its proper divisors (2955611).

19315429 is a wasteful number, since it uses less digits than its factorization.

19315429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24539.

The product of its digits is 9720, while the sum is 34.

The square root of 19315429 is about 4394.9321951539. The cubic root of 19315429 is about 268.3087191993.

The spelling of 19315429 in words is "nineteen million, three hundred fifteen thousand, four hundred twenty-nine".

Divisors: 1 7 113 791 24419 170933 2759347 19315429