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8212652145 = 3251712598527
BaseRepresentation
bin1111010011000001…
…10010000001110001
3210012100112221210200
413221200302001301
5113304414332040
63434533345413
7410342251155
oct75140620161
923170487720
108212652145
113534912125
121712498269
13a0b60a1a9
1457ca21065
15331003630
hex1e9832071

8212652145 has 48 divisors (see below), whose sum is σ = 15086373120. Its totient is φ = 4118671872.

The previous prime is 8212652143. The next prime is 8212652171. The reversal of 8212652145 is 5412562128.

8212652145 is a `hidden beast` number, since 8 + 2 + 126 + 521 + 4 + 5 = 666.

8212652145 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8212652145 - 21 = 8212652143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8212652143) 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, 958872 + ... + 967398.

It is an arithmetic number, because the mean of its divisors is an integer number (314299440).

Almost surely, 28212652145 is an apocalyptic number.

8212652145 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8212652145 is a deficient number, since it is larger than the sum of its proper divisors (6873720975).

8212652145 is a wasteful number, since it uses less digits than its factorization.

8212652145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9814 (or 9811 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 8212652145 is about 90623.6842387243. The cubic root of 8212652145 is about 2017.5662733950.

The spelling of 8212652145 in words is "eight billion, two hundred twelve million, six hundred fifty-two thousand, one hundred forty-five".

Divisors: 1 3 5 9 15 17 45 51 85 153 255 765 1259 3777 6295 8527 11331 18885 21403 25581 42635 56655 64209 76743 107015 127905 144959 192627 321045 383715 434877 724795 963135 1304631 2174385 6523155 10735493 32206479 53677465 96619437 161032395 182503381 483097185 547510143 912516905 1642530429 2737550715 8212652145