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2225947311 = 3571308611
BaseRepresentation
bin1000010010101101…
…0100001010101111
312202010111211200000
42010223110022233
514024320303221
61004513435343
7106106145210
oct20453241257
95663454600
102225947311
11a42542185
1252156bb53
13296217ab3
141718b3407
15d0644e26
hex84ad42af

2225947311 has 24 divisors (see below), whose sum is σ = 3810678144. Its totient is φ = 1271968920.

The previous prime is 2225947301. The next prime is 2225947313. The reversal of 2225947311 is 1137495222.

It is not a de Polignac number, because 2225947311 - 26 = 2225947247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2225947313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 652605 + ... + 656006.

It is an arithmetic number, because the mean of its divisors is an integer number (158778256).

Almost surely, 22225947311 is an apocalyptic number.

2225947311 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2225947311 is a deficient number, since it is larger than the sum of its proper divisors (1584730833).

2225947311 is an equidigital number, since it uses as much as digits as its factorization.

2225947311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308633 (or 1308621 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 2225947311 is about 47179.9460682184. The cubic root of 2225947311 is about 1305.6846348158.

The spelling of 2225947311 in words is "two billion, two hundred twenty-five million, nine hundred forty-seven thousand, three hundred eleven".

Divisors: 1 3 7 9 21 27 63 81 189 243 567 1701 1308611 3925833 9160277 11777499 27480831 35332497 82442493 105997491 247327479 317992473 741982437 2225947311