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2808973072 = 241923217467
BaseRepresentation
bin1010011101101101…
…1000011100010000
321020202120121122201
42213123120130100
521223044114242
61142422012544
7126415606603
oct24733303420
97222517581
102808973072
111211657054
12664877154
13359c4c559
141c90bc33a
1511690d4b7
hexa76d8710

2808973072 has 60 divisors (see below), whose sum is σ = 5989078480. Its totient is φ = 1272642624.

The previous prime is 2808973043. The next prime is 2808973081. The reversal of 2808973072 is 2703798082.

It is a super-2 number, since 2×28089730722 = 15780659438442234368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152083 + ... + 169549.

Almost surely, 22808973072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2808973072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2994539240).

2808973072 is an abundant number, since it is smaller than the sum of its proper divisors (3180105408).

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

2808973072 is a wasteful number, since it uses less digits than its factorization.

2808973072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17540 (or 17511 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 2808973072 is about 52999.7459616553. The cubic root of 2808973072 is about 1410.9637580530.

The spelling of 2808973072 in words is "two billion, eight hundred eight million, nine hundred seventy-three thousand, seventy-two".

Divisors: 1 2 4 8 16 19 23 38 46 76 92 152 184 304 368 437 529 874 1058 1748 2116 3496 4232 6992 8464 10051 17467 20102 34934 40204 69868 80408 139736 160816 279472 331873 401741 663746 803482 1327492 1606964 2654984 3213928 5309968 6427856 7633079 9240043 15266158 18480086 30532316 36960172 61064632 73920344 122129264 147840688 175560817 351121634 702243268 1404486536 2808973072