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164118190 = 2516411819
BaseRepresentation
bin10011100100000…
…11111010101110
3102102211001211111
421302003322232
5314003240230
624141342234
74031660455
oct1162037256
9372731744
10164118190
1184705475
1246b6797a
1328003072
1417b21b9c
15e61c92a
hex9c83eae

164118190 has 8 divisors (see below), whose sum is σ = 295412760. Its totient is φ = 65647272.

The previous prime is 164118173. The next prime is 164118197. The reversal of 164118190 is 91811461.

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

It is a super-2 number, since 2×1641181902 = 53869560577752200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164118197) 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, 8205900 + ... + 8205919.

It is an arithmetic number, because the mean of its divisors is an integer number (36926595).

Almost surely, 2164118190 is an apocalyptic number.

164118190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164118190 is a deficient number, since it is larger than the sum of its proper divisors (131294570).

164118190 is a wasteful number, since it uses less digits than its factorization.

164118190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16411826.

The product of its (nonzero) digits is 1728, while the sum is 31.

The square root of 164118190 is about 12810.8621880028. The cubic root of 164118190 is about 547.5018271729.

The spelling of 164118190 in words is "one hundred sixty-four million, one hundred eighteen thousand, one hundred ninety".

Divisors: 1 2 5 10 16411819 32823638 82059095 164118190