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216700794 = 23212038933
BaseRepresentation
bin11001110101010…
…01011101111010
3120002202112121100
430322221131322
5420433411134
633300352230
75240632512
oct1472513572
9502675540
10216700794
1110135a572
12606a5676
1335b83b2b
1420acc842
1514057999
hexcea977a

216700794 has 12 divisors (see below), whose sum is σ = 469518426. Its totient is φ = 72233592.

The previous prime is 216700777. The next prime is 216700811. The reversal of 216700794 is 497007612.

It is a happy number.

216700794 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (216700777) and next prime (216700811).

It can be written as a sum of positive squares in only one way, i.e., 159138225 + 57562569 = 12615^2 + 7587^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6019449 + ... + 6019484.

Almost surely, 2216700794 is an apocalyptic number.

216700794 is an abundant number, since it is smaller than the sum of its proper divisors (252817632).

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

216700794 is a wasteful number, since it uses less digits than its factorization.

216700794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12038941 (or 12038938 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 216700794 is about 14720.7606461079. The cubic root of 216700794 is about 600.6481828462.

The spelling of 216700794 in words is "two hundred sixteen million, seven hundred thousand, seven hundred ninety-four".

Divisors: 1 2 3 6 9 18 12038933 24077866 36116799 72233598 108350397 216700794