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2273952681 = 3271113252409
BaseRepresentation
bin1000011110001001…
…1100001110101001
312212110211202122200
42013202130032221
514124112441211
61013350410413
7110231164440
oct20742341651
95773752580
102273952681
11a67650340
12535660a09
132a3155340
1417800bd57
15d4978b56
hex8789c3a9

2273952681 has 48 divisors (see below), whose sum is σ = 4410107520. Its totient is φ = 1090402560.

The previous prime is 2273952671. The next prime is 2273952719. The reversal of 2273952681 is 1862593722.

It is not a de Polignac number, because 2273952681 - 214 = 2273936297 is a prime.

It is a super-2 number, since 2×22739526812 = 10341721590854175522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2273952671) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 117196 + ... + 135213.

It is an arithmetic number, because the mean of its divisors is an integer number (91877240).

Almost surely, 22273952681 is an apocalyptic number.

2273952681 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2273952681 is a deficient number, since it is larger than the sum of its proper divisors (2136154839).

2273952681 is a wasteful number, since it uses less digits than its factorization.

2273952681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252446 (or 252443 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 2273952681 is about 47685.9799207272. The cubic root of 2273952681 is about 1315.0042034110.

The spelling of 2273952681 in words is "two billion, two hundred seventy-three million, nine hundred fifty-two thousand, six hundred eighty-one".

Divisors: 1 3 7 9 11 13 21 33 39 63 77 91 99 117 143 231 273 429 693 819 1001 1287 3003 9009 252409 757227 1766863 2271681 2776499 3281317 5300589 8329497 9843951 15901767 19435493 22969219 24988491 29531853 36094487 58306479 68907657 108283461 174919437 206722971 252661409 324850383 757984227 2273952681