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16220245 = 537432039
BaseRepresentation
bin111101111000…
…000001010101
31010112001222211
4331320001111
513123021440
61335353421
7254604226
oct75700125
933461884
1016220245
119179568
125522871
13348bba2
14222324d
151655eea
hexf78055

16220245 has 16 divisors (see below), whose sum is σ = 20465280. Its totient is φ = 12325824.

The previous prime is 16220233. The next prime is 16220249. The reversal of 16220245 is 54202261.

16220245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 16220245 - 221 = 14123093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16220249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6936 + ... + 8974.

It is an arithmetic number, because the mean of its divisors is an integer number (1279080).

Almost surely, 216220245 is an apocalyptic number.

It is an amenable number.

16220245 is a deficient number, since it is larger than the sum of its proper divisors (4245035).

16220245 is a wasteful number, since it uses less digits than its factorization.

16220245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2124.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 16220245 is about 4027.4365296054. The cubic root of 16220245 is about 253.1351587652.

The spelling of 16220245 in words is "sixteen million, two hundred twenty thousand, two hundred forty-five".

Divisors: 1 5 37 43 185 215 1591 2039 7955 10195 75443 87677 377215 438385 3244049 16220245