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8216132472 = 2332271421081
BaseRepresentation
bin1111010011011100…
…00011101101111000
3210012121002202220200
413221232003231320
5113311312214342
63435140122200
7410413654662
oct75156035570
923177082820
108216132472
113536879a29
121713696360
13a0c258362
1457d289532
1533148e94c
hex1e9b83b78

8216132472 has 48 divisors (see below), whose sum is σ = 22334189280. Its totient is φ = 2728598400.

The previous prime is 8216132413. The next prime is 8216132549. The reversal of 8216132472 is 2742316128.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 191029 + ... + 230052.

It is an arithmetic number, because the mean of its divisors is an integer number (465295610).

Almost surely, 28216132472 is an apocalyptic number.

It is an amenable number.

8216132472 is an abundant number, since it is smaller than the sum of its proper divisors (14118056808).

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

8216132472 is a wasteful number, since it uses less digits than its factorization.

8216132472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421364 (or 421357 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 8216132472 is about 90642.8842877366. The cubic root of 8216132472 is about 2017.8512320415.

The spelling of 8216132472 in words is "eight billion, two hundred sixteen million, one hundred thirty-two thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 271 542 813 1084 1626 2168 2439 3252 4878 6504 9756 19512 421081 842162 1263243 1684324 2526486 3368648 3789729 5052972 7579458 10105944 15158916 30317832 114112951 228225902 342338853 456451804 684677706 912903608 1027016559 1369355412 2054033118 2738710824 4108066236 8216132472