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2983900680 = 23345920957
BaseRepresentation
bin1011000111011010…
…1011011000001000
321200221201212020000
42301312223120020
522102334310210
61212031203000
7133641510615
oct26166533010
97627655200
102983900680
1112a1374822
126b3376460
13387268707
1420441550c
15126e63ac0
hexb1dab608

2983900680 has 80 divisors (see below), whose sum is σ = 10029232620. Its totient is φ = 795705984.

The previous prime is 2983900679. The next prime is 2983900697. The reversal of 2983900680 is 860093892.

It can be written as a sum of positive squares in 2 ways, for example, as 2764446084 + 219454596 = 52578^2 + 14814^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 457239 + ... + 463718.

Almost surely, 22983900680 is an apocalyptic number.

2983900680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2983900680 is an abundant number, since it is smaller than the sum of its proper divisors (7045331940).

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

2983900680 is a wasteful number, since it uses less digits than its factorization.

2983900680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920980 (or 920967 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 2983900680 is about 54625.0920365357. The cubic root of 2983900680 is about 1439.6650262509.

The spelling of 2983900680 in words is "two billion, nine hundred eighty-three million, nine hundred thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 30 36 40 45 54 60 72 81 90 108 120 135 162 180 216 270 324 360 405 540 648 810 1080 1620 3240 920957 1841914 2762871 3683828 4604785 5525742 7367656 8288613 9209570 11051484 13814355 16577226 18419140 22102968 24865839 27628710 33154452 36838280 41443065 49731678 55257420 66308904 74597517 82886130 99463356 110514840 124329195 149195034 165772260 198926712 248658390 298390068 331544520 372987585 497316780 596780136 745975170 994633560 1491950340 2983900680