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1920343080 = 2335128312473
BaseRepresentation
bin111001001110110…
…0001110000101000
311221211110112110210
41302131201300220
512413101434310
6514315341120
765405434605
oct16235416050
94854415423
101920343080
118a5a901a7
124571517a0
13247b071a6
141430816ac
15b38ca820
hex72761c28

1920343080 has 64 divisors (see below), whose sum is σ = 5765981760. Its totient is φ = 511651328.

The previous prime is 1920343003. The next prime is 1920343153. The reversal of 1920343080 is 803430291.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147724 + ... + 160196.

It is an arithmetic number, because the mean of its divisors is an integer number (90093465).

Almost surely, 21920343080 is an apocalyptic number.

1920343080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1920343080 is an abundant number, since it is smaller than the sum of its proper divisors (3845638680).

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

1920343080 is a wasteful number, since it uses less digits than its factorization.

1920343080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13770 (or 13766 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 1920343080 is about 43821.7192725251. The cubic root of 1920343080 is about 1242.9670277870.

The spelling of 1920343080 in words is "one billion, nine hundred twenty million, three hundred forty-three thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 1283 2566 3849 5132 6415 7698 10264 12473 12830 15396 19245 24946 25660 30792 37419 38490 49892 51320 62365 74838 76980 99784 124730 149676 153960 187095 249460 299352 374190 498920 748380 1496760 16002859 32005718 48008577 64011436 80014295 96017154 128022872 160028590 192034308 240042885 320057180 384068616 480085770 640114360 960171540 1920343080