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235216164 = 22319601347
BaseRepresentation
bin11100000010100…
…01110100100100
3121101121012220210
432001101310210
5440203404124
635201255420
75554206261
oct1601216444
9541535823
10235216164
11110856427
1266934570
1339967581
142334c268
15159b3a29
hexe051d24

235216164 has 12 divisors (see below), whose sum is σ = 548837744. Its totient is φ = 78405384.

The previous prime is 235216109. The next prime is 235216169. The reversal of 235216164 is 461612532.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (235216169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9800662 + ... + 9800685.

Almost surely, 2235216164 is an apocalyptic number.

It is an amenable number.

235216164 is an abundant number, since it is smaller than the sum of its proper divisors (313621580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

235216164 is a wasteful number, since it uses less digits than its factorization.

235216164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19601354 (or 19601352 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 235216164 is about 15336.7585884371. The cubic root of 235216164 is about 617.2897339579.

Adding to 235216164 its reverse (461612532), we get a palindrome (696828696).

The spelling of 235216164 in words is "two hundred thirty-five million, two hundred sixteen thousand, one hundred sixty-four".

Divisors: 1 2 3 4 6 12 19601347 39202694 58804041 78405388 117608082 235216164