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16164845 = 57274447
BaseRepresentation
bin111101101010…
…011111101101
31010102020222222
4331222133231
513114233340
61334245125
7254253554
oct75523755
933366888
1016164845
119140984
1254b67a5
13346c8c8
14220ad9b
1516448b5
hexf6a7ed

16164845 has 8 divisors (see below), whose sum is σ = 19428864. Its totient is φ = 12911184.

The previous prime is 16164833. The next prime is 16164859. The reversal of 16164845 is 54846161.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-16164845 is a prime.

It is a super-2 number, since 2×161648452 = 522604427748050, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 9.

It is a zygodrome in base 9.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1412 + ... + 5858.

It is an arithmetic number, because the mean of its divisors is an integer number (2428608).

Almost surely, 216164845 is an apocalyptic number.

It is an amenable number.

16164845 is a deficient number, since it is larger than the sum of its proper divisors (3264019).

16164845 is an equidigital number, since it uses as much as digits as its factorization.

16164845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5179.

The product of its digits is 23040, while the sum is 35.

The square root of 16164845 is about 4020.5528226850. The cubic root of 16164845 is about 252.8466369404.

The spelling of 16164845 in words is "sixteen million, one hundred sixty-four thousand, eight hundred forty-five".

Divisors: 1 5 727 3635 4447 22235 3232969 16164845