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19240061 = 47419977
BaseRepresentation
bin100100101100…
…1010001111101
31100012111101212
41021121101331
514411140221
61524214205
7322352321
oct111312175
940174355
1019240061
11a951385
12653a365
133ca8569
1427ab981
151a50b5b
hex125947d

19240061 has 8 divisors (see below), whose sum is σ = 19716480. Its totient is φ = 18766528.

The previous prime is 19240051. The next prime is 19240063. The reversal of 19240061 is 16004291.

It is a happy number.

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 19240061 - 210 = 19239037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19240063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19205 + ... + 20181.

It is an arithmetic number, because the mean of its divisors is an integer number (2464560).

Almost surely, 219240061 is an apocalyptic number.

It is an amenable number.

19240061 is a deficient number, since it is larger than the sum of its proper divisors (476419).

19240061 is an equidigital number, since it uses as much as digits as its factorization.

19240061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1443.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 19240061 is about 4386.3493932882. The cubic root of 19240061 is about 267.9592878307.

The spelling of 19240061 in words is "nineteen million, two hundred forty thousand, sixty-one".

Divisors: 1 47 419 977 19693 45919 409363 19240061