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16872207 = 311511279
BaseRepresentation
bin100000001011…
…1001100001111
31011202012022120
41000113030033
513304402312
61401344023
7263261052
oct100271417
934665276
1016872207
119584380
125798013
133659871
142352a99
15173428c
hex101730f

16872207 has 8 divisors (see below), whose sum is σ = 24541440. Its totient is φ = 10225560.

The previous prime is 16872199. The next prime is 16872221. The reversal of 16872207 is 70227861.

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

It is not a de Polignac number, because 16872207 - 23 = 16872199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 511279 = 16872207 / (1 + 6 + 8 + 7 + 2 + 2 + 0 + 7).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16872907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255607 + ... + 255672.

It is an arithmetic number, because the mean of its divisors is an integer number (3067680).

Almost surely, 216872207 is an apocalyptic number.

16872207 is a deficient number, since it is larger than the sum of its proper divisors (7669233).

16872207 is a wasteful number, since it uses less digits than its factorization.

16872207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511293.

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 16872207 is about 4107.5792140871. The cubic root of 16872207 is about 256.4822402198.

The spelling of 16872207 in words is "sixteen million, eight hundred seventy-two thousand, two hundred seven".

Divisors: 1 3 11 33 511279 1533837 5624069 16872207