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164198198 = 2139590641
BaseRepresentation
bin10011100100101…
…11011100110110
3102102222010120202
421302113130312
5314013320243
624143200502
74032442643
oct1162273466
9372863522
10164198198
118475a59a
1246ba6132
13280305c8
1417b42dca
15e6364b8
hex9c97736

164198198 has 8 divisors (see below), whose sum is σ = 248069640. Its totient is φ = 81508320.

The previous prime is 164198191. The next prime is 164198201. The reversal of 164198198 is 891891461.

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

It is a super-2 number, since 2×1641981982 = 53922096452894408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164198191) 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, 295043 + ... + 295598.

It is an arithmetic number, because the mean of its divisors is an integer number (31008705).

Almost surely, 2164198198 is an apocalyptic number.

164198198 is a deficient number, since it is larger than the sum of its proper divisors (83871442).

164198198 is a wasteful number, since it uses less digits than its factorization.

164198198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590782.

The product of its digits is 124416, while the sum is 47.

The square root of 164198198 is about 12813.9844701014. The cubic root of 164198198 is about 547.5907821914.

The spelling of 164198198 in words is "one hundred sixty-four million, one hundred ninety-eight thousand, one hundred ninety-eight".

Divisors: 1 2 139 278 590641 1181282 82099099 164198198