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216088207 = 1712711071
BaseRepresentation
bin11001110000100…
…11111010001111
3120001121102021221
430320103322033
5420304310312
633235304211
75232501526
oct1470237217
9501542257
10216088207
11100a812a5
126044b067
13359cb05a
14209ad4bd
1513e86207
hexce13e8f

216088207 has 4 divisors (see below), whose sum is σ = 228799296. Its totient is φ = 203377120.

The previous prime is 216088189. The next prime is 216088211. The reversal of 216088207 is 702880612.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 216088207 - 27 = 216088079 is a prime.

It is a super-2 number, since 2×2160882072 = 93388226408949698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216088247) 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, 6355519 + ... + 6355552.

It is an arithmetic number, because the mean of its divisors is an integer number (57199824).

Almost surely, 2216088207 is an apocalyptic number.

216088207 is a deficient number, since it is larger than the sum of its proper divisors (12711089).

216088207 is a wasteful number, since it uses less digits than its factorization.

216088207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12711088.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 216088207 is about 14699.9390134789. The cubic root of 216088207 is about 600.0816620332.

The spelling of 216088207 in words is "two hundred sixteen million, eighty-eight thousand, two hundred seven".

Divisors: 1 17 12711071 216088207