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8212224938 = 2199101920249
BaseRepresentation
bin1111010010111110…
…01001101110101010
3210012022202020210012
413221133021232222
5113304312144223
63434520251522
7410335521521
oct75137115652
923168666705
108212224938
113534650165
121712310ba2
13a0b4ba8c8
1457c94d4b8
15330e6bc78
hex1e97c9baa

8212224938 has 16 divisors (see below), whose sum is σ = 12393000000. Its totient is φ = 4081267872.

The previous prime is 8212224931. The next prime is 8212224949. The reversal of 8212224938 is 8394222128.

It is a junction number, because it is equal to n+sod(n) for n = 8212224895 and 8212224904.

It is not an unprimeable number, because it can be changed into a prime (8212224931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395438 + ... + 415686.

It is an arithmetic number, because the mean of its divisors is an integer number (774562500).

Almost surely, 28212224938 is an apocalyptic number.

8212224938 is a deficient number, since it is larger than the sum of its proper divisors (4180775062).

8212224938 is a wasteful number, since it uses less digits than its factorization.

8212224938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21469.

The product of its digits is 110592, while the sum is 41.

The square root of 8212224938 is about 90621.3271697121. The cubic root of 8212224938 is about 2017.5312894310.

The spelling of 8212224938 in words is "eight billion, two hundred twelve million, two hundred twenty-four thousand, nine hundred thirty-eight".

Divisors: 1 2 199 398 1019 2038 20249 40498 202781 405562 4029551 8059102 20633731 41267462 4106112469 8212224938