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1900470080 = 26524372
BaseRepresentation
bin111000101000110…
…1101111101000000
311220110001212211202
41301101231331000
512343010020310
6512325400332
765044505045
oct16121557500
94813055752
101900470080
11895847333
124505690a8
13243969812
1414058b1cc
15b1ca23a5
hex7146df40

1900470080 has 42 divisors (see below), whose sum is σ = 4527352134. Its totient is φ = 759876096.

The previous prime is 1900470031. The next prime is 1900470083. The reversal of 1900470080 is 800740091.

It can be written as a sum of positive squares in 3 ways, for example, as 1097994496 + 802475584 = 33136^2 + 28328^2 .

It is a super-2 number, since 2×19004700802 = 7223573049950412800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1900470083) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 778622 + ... + 781058.

Almost surely, 21900470080 is an apocalyptic number.

1900470080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1900470080 is an abundant number, since it is smaller than the sum of its proper divisors (2626882054).

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

1900470080 is an frugal number, since it uses more digits than its factorization.

1900470080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4891 (or 2444 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 1900470080 is about 43594.3812893359. The cubic root of 1900470080 is about 1238.6644656601.

The spelling of 1900470080 in words is "one billion, nine hundred million, four hundred seventy thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 2437 4874 9748 12185 19496 24370 38992 48740 77984 97480 155968 194960 389920 779840 5938969 11877938 23755876 29694845 47511752 59389690 95023504 118779380 190047008 237558760 380094016 475117520 950235040 1900470080