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19949041 = 717533163
BaseRepresentation
bin100110000011…
…0010111110001
31101112111221101
41030012113301
520101332131
61551324401
7331364320
oct114062761
941474841
1019949041
1110296012
126820701
134196188
1429140b7
151b40c61
hex13065f1

19949041 has 16 divisors (see below), whose sum is σ = 24603264. Its totient is φ = 15784704.

The previous prime is 19949029. The next prime is 19949047. The reversal of 19949041 is 14094991.

It is not a de Polignac number, because 19949041 - 29 = 19948529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19949047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4726 + ... + 7888.

It is an arithmetic number, because the mean of its divisors is an integer number (1537704).

Almost surely, 219949041 is an apocalyptic number.

It is an amenable number.

19949041 is a deficient number, since it is larger than the sum of its proper divisors (4654223).

19949041 is a wasteful number, since it uses less digits than its factorization.

19949041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3240.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 19949041 is about 4466.4349317996. The cubic root of 19949041 is about 271.2110255682.

The spelling of 19949041 in words is "nineteen million, nine hundred forty-nine thousand, forty-one".

Divisors: 1 7 17 53 119 371 901 3163 6307 22141 53771 167639 376397 1173473 2849863 19949041