Search a number
-
+
19071080 = 235768111
BaseRepresentation
bin100100011000…
…0000001101000
31022212220121022
41020300001220
514340233310
61520432012
7321046550
oct110600150
938786538
1019071080
11a846426
126478608
133c49682
142766160
151a1aa55
hex1230068

19071080 has 32 divisors (see below), whose sum is σ = 49040640. Its totient is φ = 6538560.

The previous prime is 19071061. The next prime is 19071089. The reversal of 19071080 is 8017091.

It is not an unprimeable number, because it can be changed into a prime (19071089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33776 + ... + 34335.

It is an arithmetic number, because the mean of its divisors is an integer number (1532520).

Almost surely, 219071080 is an apocalyptic number.

19071080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19071080 is an abundant number, since it is smaller than the sum of its proper divisors (29969560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19071080 is a wasteful number, since it uses less digits than its factorization.

19071080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68129 (or 68125 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 26.

The square root of 19071080 is about 4367.0447673455. The cubic root of 19071080 is about 267.1725051489.

The spelling of 19071080 in words is "nineteen million, seventy-one thousand, eighty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 68111 136222 272444 340555 476777 544888 681110 953554 1362220 1907108 2383885 2724440 3814216 4767770 9535540 19071080