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19101214 = 2111994363
BaseRepresentation
bin100100011011…
…1011000011110
31022221102221101
41020313120132
514342214324
61521223314
7321233446
oct110673036
938842841
1019101214
11a867030
126491b3a
133c5a2c2
142773126
151a24944
hex123761e

19101214 has 16 divisors (see below), whose sum is σ = 31420800. Its totient is φ = 8636760.

The previous prime is 19101211. The next prime is 19101263. The reversal of 19101214 is 41210191.

It is a junction number, because it is equal to n+sod(n) for n = 19101191 and 19101200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19101211) 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, 2197 + ... + 6559.

It is an arithmetic number, because the mean of its divisors is an integer number (1963800).

Almost surely, 219101214 is an apocalyptic number.

19101214 is a deficient number, since it is larger than the sum of its proper divisors (12319586).

19101214 is a wasteful number, since it uses less digits than its factorization.

19101214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4575.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 19101214 is about 4370.4935648048. The cubic root of 19101214 is about 267.3131498593.

The spelling of 19101214 in words is "nineteen million, one hundred one thousand, two hundred fourteen".

Divisors: 1 2 11 22 199 398 2189 4363 4378 8726 47993 95986 868237 1736474 9550607 19101214