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19045124 = 227297169
BaseRepresentation
bin100100010100…
…1101100000100
31022211120222222
41020221230010
514333420444
61520111512
7320611100
oct110515404
938746888
1019045124
11a82897a
126465598
133c3a907
14275a900
151a12eee
hex1229b04

19045124 has 18 divisors (see below), whose sum is σ = 38770830. Its totient is φ = 8162112.

The previous prime is 19045123. The next prime is 19045139. The reversal of 19045124 is 42154091.

It can be written as a sum of positive squares in only one way, i.e., 15366400 + 3678724 = 3920^2 + 1918^2 .

It is a junction number, because it is equal to n+sod(n) for n = 19045093 and 19045102.

It is not an unprimeable number, because it can be changed into a prime (19045123) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48389 + ... + 48780.

It is an arithmetic number, because the mean of its divisors is an integer number (2153935).

Almost surely, 219045124 is an apocalyptic number.

19045124 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

19045124 is an abundant number, since it is smaller than the sum of its proper divisors (19725706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19045124 is a wasteful number, since it uses less digits than its factorization.

19045124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97187 (or 97178 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 19045124 is about 4364.0719517442. The cubic root of 19045124 is about 267.0512416440.

The spelling of 19045124 in words is "nineteen million, forty-five thousand, one hundred twenty-four".

Divisors: 1 2 4 7 14 28 49 98 196 97169 194338 388676 680183 1360366 2720732 4761281 9522562 19045124