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19148107 = 114142457
BaseRepresentation
bin100100100001…
…0110101001011
31100000211021011
41021002311023
514400214412
61522224351
7321520246
oct111026513
940024234
1019148107
11a899290
1264b50b7
133c75754
14278625d
151a337a7
hex1242d4b

19148107 has 8 divisors (see below), whose sum is σ = 21398832. Its totient is φ = 16982400.

The previous prime is 19148093. The next prime is 19148117. The reversal of 19148107 is 70184191.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-19148107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19148117) 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 7 ways as a sum of consecutive naturals, for example, 20778 + ... + 21679.

It is an arithmetic number, because the mean of its divisors is an integer number (2674854).

Almost surely, 219148107 is an apocalyptic number.

19148107 is a deficient number, since it is larger than the sum of its proper divisors (2250725).

19148107 is a wasteful number, since it uses less digits than its factorization.

19148107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42509.

The product of its (nonzero) digits is 2016, while the sum is 31.

The square root of 19148107 is about 4375.8550021681. The cubic root of 19148107 is about 267.5317201154.

The spelling of 19148107 in words is "nineteen million, one hundred forty-eight thousand, one hundred seven".

Divisors: 1 11 41 451 42457 467027 1740737 19148107