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16316920 = 235407923
BaseRepresentation
bin111110001111…
…100111111000
31010200222121101
4332033213320
513134120140
61341421144
7255456124
oct76174770
933628541
1016316920
119235164
12556a7b4
1334c3ba9
14224a584
15167499a
hexf8f9f8

16316920 has 16 divisors (see below), whose sum is σ = 36713160. Its totient is φ = 6526752.

The previous prime is 16316917. The next prime is 16316929. The reversal of 16316920 is 2961361.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16316929) 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, 203922 + ... + 204001.

Almost surely, 216316920 is an apocalyptic number.

16316920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16316920 is an abundant number, since it is smaller than the sum of its proper divisors (20396240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16316920 is a wasteful number, since it uses less digits than its factorization.

16316920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407934 (or 407930 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 16316920 is about 4039.4207505532. The cubic root of 16316920 is about 253.6370702808.

The spelling of 16316920 in words is "sixteen million, three hundred sixteen thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 407923 815846 1631692 2039615 3263384 4079230 8158460 16316920