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216480660362 = 2149726445169
BaseRepresentation
bin1100100110011101000…
…0001011101110001010
3202200202220112222100122
43021213100023232022
512021323022112422
6243241055503242
721432410152331
oct3114720135612
9680686488318
10216480660362
118389976426a
1235b56b27b22
131754c848805
14a698c12d18
155970262d42
hex326740bb8a

216480660362 has 8 divisors (see below), whose sum is σ = 326900326500. Its totient is φ = 107513884864.

The previous prime is 216480660343. The next prime is 216480660367. The reversal of 216480660362 is 263066084612.

It can be written as a sum of positive squares in 2 ways, for example, as 214108872961 + 2371787401 = 462719^2 + 48701^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (216480660367) 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, 363222287 + ... + 363222882.

Almost surely, 2216480660362 is an apocalyptic number.

216480660362 is a deficient number, since it is larger than the sum of its proper divisors (110419666138).

216480660362 is a wasteful number, since it uses less digits than its factorization.

216480660362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726445320.

The product of its (nonzero) digits is 497664, while the sum is 44.

The spelling of 216480660362 in words is "two hundred sixteen billion, four hundred eighty million, six hundred sixty thousand, three hundred sixty-two".

Divisors: 1 2 149 298 726445169 1452890338 108240330181 216480660362