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19148061 = 37189897
BaseRepresentation
bin100100100001…
…0110100011101
31100000211012110
41021002310131
514400214221
61522224233
7321520152
oct111026435
940024173
1019148061
11a899249
1264b5079
133c7571a
142786229
151a33776
hex1242d1d

19148061 has 8 divisors (see below), whose sum is σ = 25890624. Its totient is φ = 12585440.

The previous prime is 19148057. The next prime is 19148081. The reversal of 19148061 is 16084191.

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 19148061 - 22 = 19148057 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19148011) 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, 44736 + ... + 45161.

It is an arithmetic number, because the mean of its divisors is an integer number (3236328).

Almost surely, 219148061 is an apocalyptic number.

It is an amenable number.

19148061 is a deficient number, since it is larger than the sum of its proper divisors (6742563).

19148061 is an equidigital number, since it uses as much as digits as its factorization.

19148061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89971.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 19148061 is about 4375.8497460493. The cubic root of 19148061 is about 267.5315058824.

The spelling of 19148061 in words is "nineteen million, one hundred forty-eight thousand, sixty-one".

Divisors: 1 3 71 213 89897 269691 6382687 19148061