Search a number
-
+
19142018 = 274093343
BaseRepresentation
bin100100100000…
…1010110000010
31100000111220122
41021001112002
514400021033
61522140242
7321463430
oct111012602
940014818
1019142018
11a894755
1264b1682
133c72a4c
142783d50
151a31a98
hex1241582

19142018 has 16 divisors (see below), whose sum is σ = 32904960. Its totient is φ = 8181216.

The previous prime is 19141999. The next prime is 19142021. The reversal of 19142018 is 81024191.

It is a super-3 number, since 3×191420183 (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4055 + ... + 7397.

It is an arithmetic number, because the mean of its divisors is an integer number (2056560).

Almost surely, 219142018 is an apocalyptic number.

19142018 is a deficient number, since it is larger than the sum of its proper divisors (13762942).

19142018 is a wasteful number, since it uses less digits than its factorization.

19142018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3761.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 19142018 is about 4375.1591971036. The cubic root of 19142018 is about 267.5033592032.

The spelling of 19142018 in words is "nineteen million, one hundred forty-two thousand, eighteen".

Divisors: 1 2 7 14 409 818 2863 3343 5726 6686 23401 46802 1367287 2734574 9571009 19142018