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214728503 = 11191102203
BaseRepresentation
bin11001100110001…
…11111100110111
3112222001100010112
430303013330313
5414432303003
633150213235
75215106423
oct1463077467
9488040115
10214728503
11100232780
125bab421b
13356431b2
1420737b83
1513cb83d8
hexccc7f37

214728503 has 8 divisors (see below), whose sum is σ = 235478016. Its totient is φ = 194183800.

The previous prime is 214728497. The next prime is 214728523. The reversal of 214728503 is 305827412.

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

It is a cyclic number.

It is not a de Polignac number, because 214728503 - 28 = 214728247 is a prime.

It is a super-2 number, since 2×2147285032 = 92216660001242018, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 214728503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214728523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49001 + ... + 53202.

It is an arithmetic number, because the mean of its divisors is an integer number (29434752).

Almost surely, 2214728503 is an apocalyptic number.

214728503 is a deficient number, since it is larger than the sum of its proper divisors (20749513).

214728503 is a wasteful number, since it uses less digits than its factorization.

214728503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102405.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 214728503 is about 14653.6174032216. The cubic root of 214728503 is about 598.8203702724.

The spelling of 214728503 in words is "two hundred fourteen million, seven hundred twenty-eight thousand, five hundred three".

Divisors: 1 11 191 2101 102203 1124233 19520773 214728503