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16944213 = 31113127311
BaseRepresentation
bin100000010100…
…0110001010101
31011212212002110
41000220301111
513314203323
61403101233
7264011016
oct100506125
934785073
1016944213
119623490
125811819
133683580
14237100d
15174a793
hex1028c55

16944213 has 32 divisors (see below), whose sum is σ = 26836992. Its totient is φ = 9374400.

The previous prime is 16944211. The next prime is 16944217. The reversal of 16944213 is 31244961.

It is not a de Polignac number, because 16944213 - 21 = 16944211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16944211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54328 + ... + 54638.

It is an arithmetic number, because the mean of its divisors is an integer number (838656).

Almost surely, 216944213 is an apocalyptic number.

16944213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

16944213 is a deficient number, since it is larger than the sum of its proper divisors (9892779).

16944213 is a wasteful number, since it uses less digits than its factorization.

16944213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465.

The product of its digits is 5184, while the sum is 30.

The square root of 16944213 is about 4116.3348989119. The cubic root of 16944213 is about 256.8465879268.

The spelling of 16944213 in words is "sixteen million, nine hundred forty-four thousand, two hundred thirteen".

Divisors: 1 3 11 13 33 39 127 143 311 381 429 933 1397 1651 3421 4043 4191 4953 10263 12129 18161 39497 44473 54483 118491 133419 434467 513461 1303401 1540383 5648071 16944213