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16996073969 = 717281508271
BaseRepresentation
bin11111101010000101…
…11000000111110001
31121212111010000102002
433311002320013301
5234301443331334
611450300503345
71141115150030
oct176502700761
947774100362
1016996073969
117231927a26
123363b4ab55
1317ab24a404
14b7337a717
1569719db7e
hex3f50b81f1

16996073969 has 16 divisors (see below), whose sum is σ = 20639909376. Its totient is φ = 13662297600.

The previous prime is 16996073959. The next prime is 16996073977. The reversal of 16996073969 is 96937069961.

It is not a de Polignac number, because 16996073969 - 212 = 16996069873 is a prime.

It is a super-2 number, since 2×169960739692 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16996073909) 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, 220697 + ... + 287574.

It is an arithmetic number, because the mean of its divisors is an integer number (1289994336).

Almost surely, 216996073969 is an apocalyptic number.

It is an amenable number.

16996073969 is a deficient number, since it is larger than the sum of its proper divisors (3643835407).

16996073969 is a wasteful number, since it uses less digits than its factorization.

16996073969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508576.

The product of its (nonzero) digits is 29760696, while the sum is 65.

The spelling of 16996073969 in words is "sixteen billion, nine hundred ninety-six million, seventy-three thousand, nine hundred sixty-nine".

Divisors: 1 7 17 119 281 1967 4777 33439 508271 3557897 8640607 60484249 142824151 999769057 2428010567 16996073969