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16380208 = 2413611291
BaseRepresentation
bin111110011111…
…000100110000
31010211012102101
4332133010300
513143131313
61343030144
7256141465
oct76370460
933735371
1016380208
119278769
12559b354
133516940
14226566c
1516885dd
hexf9f130

16380208 has 40 divisors (see below), whose sum is σ = 34765136. Its totient is φ = 7430400.

The previous prime is 16380191. The next prime is 16380253. The reversal of 16380208 is 80208361.

It is a super-2 number, since 2×163802082 = 536622428246528, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12043 + ... + 13333.

Almost surely, 216380208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16380208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17382568).

16380208 is an abundant number, since it is smaller than the sum of its proper divisors (18384928).

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

16380208 is a wasteful number, since it uses less digits than its factorization.

16380208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1373 (or 1367 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 16380208 is about 4047.2469655310. The cubic root of 16380208 is about 253.9645723213.

Adding to 16380208 its reverse (80208361), we get a palindrome (96588569).

The spelling of 16380208 in words is "sixteen million, three hundred eighty thousand, two hundred eight".

Divisors: 1 2 4 8 13 16 26 52 61 104 122 208 244 488 793 976 1291 1586 2582 3172 5164 6344 10328 12688 16783 20656 33566 67132 78751 134264 157502 268528 315004 630008 1023763 1260016 2047526 4095052 8190104 16380208