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164198207 = 1151142657
BaseRepresentation
bin10011100100101…
…11011100111111
3102102222010121002
421302113130333
5314013320312
624143200515
74032442655
oct1162273477
9372863532
10164198207
118475a5a8
1246ba613b
1328030604
1417b42dd5
15e6364c2
hex9c9773f

164198207 has 4 divisors (see below), whose sum is σ = 164342016. Its totient is φ = 164054400.

The previous prime is 164198201. The next prime is 164198231. The reversal of 164198207 is 702891461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 164198207 - 24 = 164198191 is a prime.

It is a super-2 number, since 2×1641982072 = 53922102364029698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164198201) 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, 70178 + ... + 72479.

It is an arithmetic number, because the mean of its divisors is an integer number (41085504).

Almost surely, 2164198207 is an apocalyptic number.

164198207 is a deficient number, since it is larger than the sum of its proper divisors (143809).

164198207 is a wasteful number, since it uses less digits than its factorization.

164198207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143808.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 164198207 is about 12813.9848212802. The cubic root of 164198207 is about 547.5907921962.

The spelling of 164198207 in words is "one hundred sixty-four million, one hundred ninety-eight thousand, two hundred seven".

Divisors: 1 1151 142657 164198207