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164703444 = 22313725287
BaseRepresentation
bin10011101000100…
…10110011010100
3102110220210122120
421310102303110
5314131002234
624202055540
74036645653
oct1164226324
9373823576
10164703444
1184a75154
12471aa5b0
1328179579
1417c3519a
15e6d6049
hex9d12cd4

164703444 has 12 divisors (see below), whose sum is σ = 384308064. Its totient is φ = 54901144.

The previous prime is 164703443. The next prime is 164703467. The reversal of 164703444 is 444307461.

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

It is a super-2 number, since 2×1647034442 = 54254448930922272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164703443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6862632 + ... + 6862655.

It is an arithmetic number, because the mean of its divisors is an integer number (32025672).

Almost surely, 2164703444 is an apocalyptic number.

It is an amenable number.

164703444 is an abundant number, since it is smaller than the sum of its proper divisors (219604620).

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

164703444 is a wasteful number, since it uses less digits than its factorization.

164703444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13725294 (or 13725292 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 33.

The square root of 164703444 is about 12833.6839605781. The cubic root of 164703444 is about 548.1518617607.

The spelling of 164703444 in words is "one hundred sixty-four million, seven hundred three thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 12 13725287 27450574 41175861 54901148 82351722 164703444