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216760474 = 2719814889
BaseRepresentation
bin11001110101110…
…00000010011010
3120002212120110201
430322320002122
5420442313344
633301532414
75241301510
oct1472700232
9502776421
10216760474
111013a0397
126071410a
1335ba5048
1420b064b0
151406a4d4
hexceb809a

216760474 has 16 divisors (see below), whose sum is σ = 391147200. Its totient is φ = 88007904.

The previous prime is 216760451. The next prime is 216760483. The reversal of 216760474 is 474067612.

216760474 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407179 + ... + 407710.

It is an arithmetic number, because the mean of its divisors is an integer number (24446700).

Almost surely, 2216760474 is an apocalyptic number.

216760474 is a deficient number, since it is larger than the sum of its proper divisors (174386726).

216760474 is a wasteful number, since it uses less digits than its factorization.

216760474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814917.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 216760474 is about 14722.7875757276. The cubic root of 216760474 is about 600.7033178438.

The spelling of 216760474 in words is "two hundred sixteen million, seven hundred sixty thousand, four hundred seventy-four".

Divisors: 1 2 7 14 19 38 133 266 814889 1629778 5704223 11408446 15482891 30965782 108380237 216760474