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2030145840 = 243252819647
BaseRepresentation
bin111100100000001…
…1001000100110000
312020111002002112200
41321000121010300
513124204131330
6533241023200
7101210645352
oct17100310460
95214062480
102030145840
11951a67688
12487a84b00
132647a0838
141538a50d2
15bd369a60
hex79019130

2030145840 has 60 divisors (see below), whose sum is σ = 6817908864. Its totient is φ = 541372032.

The previous prime is 2030145827. The next prime is 2030145889. The reversal of 2030145840 is 485410302.

2030145840 is a `hidden beast` number, since 203 + 0 + 1 + 458 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1409104 + ... + 1410543.

Almost surely, 22030145840 is an apocalyptic number.

2030145840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2030145840 is an abundant number, since it is smaller than the sum of its proper divisors (4787763024).

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

2030145840 is a wasteful number, since it uses less digits than its factorization.

2030145840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2819666 (or 2819657 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 2030145840 is about 45057.1397228009. The cubic root of 2030145840 is about 1266.2197382931.

The spelling of 2030145840 in words is "two billion, thirty million, one hundred forty-five thousand, eight hundred forty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 45 48 60 72 80 90 120 144 180 240 360 720 2819647 5639294 8458941 11278588 14098235 16917882 22557176 25376823 28196470 33835764 42294705 45114352 50753646 56392940 67671528 84589410 101507292 112785880 126884115 135343056 169178820 203014584 225571760 253768230 338357640 406029168 507536460 676715280 1015072920 2030145840