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216233630 = 2521623363
BaseRepresentation
bin11001110001101…
…11011010011110
3120001212210202222
430320313122132
5420323434010
633242345342
75233645514
oct1470673236
9501783688
10216233630
11101070588
12604bb252
1335a4c2c2
1420a0a4b4
1513eb4355
hexce3769e

216233630 has 8 divisors (see below), whose sum is σ = 389220552. Its totient is φ = 86493448.

The previous prime is 216233581. The next prime is 216233639. The reversal of 216233630 is 36332612.

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

It is a self number, because there is not a number n which added to its sum of digits gives 216233630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216233639) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 10811672 + ... + 10811691.

It is an arithmetic number, because the mean of its divisors is an integer number (48652569).

Almost surely, 2216233630 is an apocalyptic number.

216233630 is a deficient number, since it is larger than the sum of its proper divisors (172986922).

216233630 is a wasteful number, since it uses less digits than its factorization.

216233630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21623370.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 216233630 is about 14704.8845626207. The cubic root of 216233630 is about 600.2162461274.

The spelling of 216233630 in words is "two hundred sixteen million, two hundred thirty-three thousand, six hundred thirty".

Divisors: 1 2 5 10 21623363 43246726 108116815 216233630