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19031084 = 2219250409
BaseRepresentation
bin100100010011…
…0010000101100
31022210212201222
41020212100230
514332443314
61515522512
7320522132
oct110462054
938725658
1019031084
11a819376
126459438
133c343c7
142755752
151a0dc8e
hex122642c

19031084 has 12 divisors (see below), whose sum is σ = 35057400. Its totient is φ = 9014688.

The previous prime is 19031083. The next prime is 19031113. The reversal of 19031084 is 48013091.

It is not an unprimeable number, because it can be changed into a prime (19031083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125129 + ... + 125280.

It is an arithmetic number, because the mean of its divisors is an integer number (2921450).

Almost surely, 219031084 is an apocalyptic number.

It is an amenable number.

19031084 is a deficient number, since it is larger than the sum of its proper divisors (16026316).

19031084 is a wasteful number, since it uses less digits than its factorization.

19031084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250432 (or 250430 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 19031084 is about 4362.4630657462. The cubic root of 19031084 is about 266.9856024256.

The spelling of 19031084 in words is "nineteen million, thirty-one thousand, eighty-four".

Divisors: 1 2 4 19 38 76 250409 500818 1001636 4757771 9515542 19031084