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19514090 = 254874007
BaseRepresentation
bin100101001110…
…0001011101010
31100201102022002
41022130023222
514443422330
61534131002
7324603251
oct112341352
940642262
1019514090
1110019252
126650a62
1340731cb
14283d798
151aa6e45
hex129c2ea

19514090 has 16 divisors (see below), whose sum is σ = 35206272. Its totient is φ = 7787664.

The previous prime is 19514069. The next prime is 19514101. The reversal of 19514090 is 9041591.

It is a super-3 number, since 3×195140903 (a number of 23 digits) contains 333 as substring.

It is a Curzon number.

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, 2867 + ... + 6873.

It is an arithmetic number, because the mean of its divisors is an integer number (2200392).

Almost surely, 219514090 is an apocalyptic number.

19514090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19514090 is a deficient number, since it is larger than the sum of its proper divisors (15692182).

19514090 is a wasteful number, since it uses less digits than its factorization.

19514090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4501.

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 19514090 is about 4417.4755234183. The cubic root of 19514090 is about 269.2254435995.

The spelling of 19514090 in words is "nineteen million, five hundred fourteen thousand, ninety".

Divisors: 1 2 5 10 487 974 2435 4007 4870 8014 20035 40070 1951409 3902818 9757045 19514090