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164004764 = 22731110867
BaseRepresentation
bin10011100011010…
…00001110011100
3102102121022020112
421301220032130
5313441123024
624135105152
74031006000
oct1161501634
9372538215
10164004764
1184638230
1246b121b8
1327c93551
1417ad2700
15e5e900e
hex9c6839c

164004764 has 48 divisors (see below), whose sum is σ = 365164800. Its totient is φ = 63892080.

The previous prime is 164004733. The next prime is 164004769. The reversal of 164004764 is 467400461.

It is a super-2 number, since 2×1640047642 = 53795125229391392, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 164004764.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164004769) 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 15 ways as a sum of consecutive naturals, for example, 9659 + ... + 20525.

It is an arithmetic number, because the mean of its divisors is an integer number (7607600).

Almost surely, 2164004764 is an apocalyptic number.

164004764 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164004764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182582400).

164004764 is an abundant number, since it is smaller than the sum of its proper divisors (201160036).

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

164004764 is a wasteful number, since it uses less digits than its factorization.

164004764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10903 (or 10887 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 164004764 is about 12806.4344764653. The cubic root of 164004764 is about 547.3756675757.

The spelling of 164004764 in words is "one hundred sixty-four million, four thousand, seven hundred sixty-four".

Divisors: 1 2 4 7 11 14 22 28 44 49 77 98 154 196 308 343 539 686 1078 1372 2156 3773 7546 10867 15092 21734 43468 76069 119537 152138 239074 304276 478148 532483 836759 1064966 1673518 2129932 3347036 3727381 5857313 7454762 11714626 14909524 23429252 41001191 82002382 164004764