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52180692228 = 223271712180367
BaseRepresentation
bin110000100110001101…
…100010110100000100
311222200120011210222200
4300212031202310010
51323331224122403
635545501154500
73525041365020
oct604615426404
9158616153880
1052180692228
1120147705435
12a14325ba30
134bc77a1062
1427501c3380
15155604aca3
hexc26362d04

52180692228 has 72 divisors (see below), whose sum is σ = 159611542272. Its totient is φ = 14031781632.

The previous prime is 52180692209. The next prime is 52180692331. The reversal of 52180692228 is 82229608125.

52180692228 is a `hidden beast` number, since 521 + 80 + 6 + 9 + 22 + 28 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6085900 + ... + 6094467.

It is an arithmetic number, because the mean of its divisors is an integer number (2216826976).

Almost surely, 252180692228 is an apocalyptic number.

It is an amenable number.

52180692228 is an abundant number, since it is smaller than the sum of its proper divisors (107430850044).

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

52180692228 is a wasteful number, since it uses less digits than its factorization.

52180692228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12180401 (or 12180396 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 52180692228 in words is "fifty-two billion, one hundred eighty million, six hundred ninety-two thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 7 9 12 14 17 18 21 28 34 36 42 51 63 68 84 102 119 126 153 204 238 252 306 357 476 612 714 1071 1428 2142 4284 12180367 24360734 36541101 48721468 73082202 85262569 109623303 146164404 170525138 207066239 219246606 255787707 341050276 414132478 438493212 511575414 621198717 767363121 828264956 1023150828 1242397434 1449463673 1534726242 1863596151 2484794868 2898927346 3069452484 3727192302 4348391019 5797854692 7454384604 8696782038 13045173057 17393564076 26090346114 52180692228