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19034813 = 77934421
BaseRepresentation
bin100100010011…
…1001010111101
31022211001212002
41020213022331
514333103223
61515552045
7320536040
oct110471275
938731762
1019034813
11a821156
12645b625
133c36005
142756c57
151a0ee28
hex12272bd

19034813 has 8 divisors (see below), whose sum is σ = 22030080. Its totient is φ = 16108560.

The previous prime is 19034803. The next prime is 19034833. The reversal of 19034813 is 31843091.

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 19034813 - 26 = 19034749 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 (19034803) 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, 16658 + ... + 17763.

It is an arithmetic number, because the mean of its divisors is an integer number (2753760).

Almost surely, 219034813 is an apocalyptic number.

It is an amenable number.

19034813 is a deficient number, since it is larger than the sum of its proper divisors (2995267).

19034813 is an equidigital number, since it uses as much as digits as its factorization.

19034813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34507.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 19034813 is about 4362.8904409806. The cubic root of 19034813 is about 267.0030392375.

The spelling of 19034813 in words is "nineteen million, thirty-four thousand, eight hundred thirteen".

Divisors: 1 7 79 553 34421 240947 2719259 19034813