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19078130 = 251999587
BaseRepresentation
bin100100011000…
…1101111110010
31022220021021102
41020301233302
514341000010
61520524402
7321106241
oct110615762
938807242
1019078130
11a850755
126480702
133c4c946
142768958
151a1cba5
hex1231bf2

19078130 has 16 divisors (see below), whose sum is σ = 34516800. Its totient is φ = 7592112.

The previous prime is 19078123. The next prime is 19078133. The reversal of 19078130 is 3187091.

It is a junction number, because it is equal to n+sod(n) for n = 19078093 and 19078102.

It is not an unprimeable number, because it can be changed into a prime (19078133) 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, 2804 + ... + 6783.

It is an arithmetic number, because the mean of its divisors is an integer number (2157300).

Almost surely, 219078130 is an apocalyptic number.

19078130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19078130 is a deficient number, since it is larger than the sum of its proper divisors (15438670).

19078130 is a wasteful number, since it uses less digits than its factorization.

19078130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9793.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 19078130 is about 4367.8518747778. The cubic root of 19078130 is about 267.2054229510.

The spelling of 19078130 in words is "nineteen million, seventy-eight thousand, one hundred thirty".

Divisors: 1 2 5 10 199 398 995 1990 9587 19174 47935 95870 1907813 3815626 9539065 19078130