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164202530 = 2516420253
BaseRepresentation
bin10011100100110…
…00100000100010
3102102222100112012
421302120200202
5314013440110
624143232522
74032461402
oct1162304042
9372870465
10164202530
1184762878
1246ba8742
132803257b
1417b44802
15e637905
hex9c98822

164202530 has 8 divisors (see below), whose sum is σ = 295564572. Its totient is φ = 65681008.

The previous prime is 164202523. The next prime is 164202569. The reversal of 164202530 is 35202461.

It can be written as a sum of positive squares in 2 ways, for example, as 163814401 + 388129 = 12799^2 + 623^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 164202496 and 164202505.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8210117 + ... + 8210136.

Almost surely, 2164202530 is an apocalyptic number.

164202530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164202530 is a deficient number, since it is larger than the sum of its proper divisors (131362042).

164202530 is a wasteful number, since it uses less digits than its factorization.

164202530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16420260.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 164202530 is about 12814.1535030606. The cubic root of 164202530 is about 547.5955977992.

Adding to 164202530 its reverse (35202461), we get a palindrome (199404991).

The spelling of 164202530 in words is "one hundred sixty-four million, two hundred two thousand, five hundred thirty".

Divisors: 1 2 5 10 16420253 32840506 82101265 164202530