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8212254312 = 233342177263
BaseRepresentation
bin1111010010111110…
…10000111001101000
3210012022210202002010
413221133100321220
5113304314114222
63434521035520
7410336003253
oct75137207150
923168722063
108212254312
113534670239
121712325ba0
13a0b4cb0a2
1457c95a09a
15330e7580c
hex1e97d0e68

8212254312 has 16 divisors (see below), whose sum is σ = 20530635840. Its totient is φ = 2737418096.

The previous prime is 8212254289. The next prime is 8212254313. The reversal of 8212254312 is 2134522128.

It is a super-2 number, since 2×82122543122 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8212254312.

It is not an unprimeable number, because it can be changed into a prime (8212254313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171088608 + ... + 171088655.

It is an arithmetic number, because the mean of its divisors is an integer number (1283164740).

Almost surely, 28212254312 is an apocalyptic number.

It is an amenable number.

8212254312 is an abundant number, since it is smaller than the sum of its proper divisors (12318381528).

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

8212254312 is a wasteful number, since it uses less digits than its factorization.

8212254312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342177272 (or 342177268 counting only the distinct ones).

The product of its digits is 7680, while the sum is 30.

The square root of 8212254312 is about 90621.4892395838. The cubic root of 8212254312 is about 2017.5336949055.

The spelling of 8212254312 in words is "eight billion, two hundred twelve million, two hundred fifty-four thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 342177263 684354526 1026531789 1368709052 2053063578 2737418104 4106127156 8212254312