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164705750 = 25311101593
BaseRepresentation
bin10011101000100…
…11010111010110
3102110220220210222
421310103113112
5314131041000
624202114342
74036655456
oct1164232726
9373826728
10164705750
1184a76960
12471ab9b2
132817a631
1417c35d66
15e6d6a85
hex9d135d6

164705750 has 64 divisors (see below), whose sum is σ = 340262208. Its totient is φ = 59200000.

The previous prime is 164705711. The next prime is 164705753. The reversal of 164705750 is 57507461.

It is a self number, because there is not a number n which added to its sum of digits gives 164705750.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164705753) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 277454 + ... + 278046.

It is an arithmetic number, because the mean of its divisors is an integer number (5316597).

Almost surely, 2164705750 is an apocalyptic number.

164705750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164705750 is an abundant number, since it is smaller than the sum of its proper divisors (175556458).

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

164705750 is a wasteful number, since it uses less digits than its factorization.

164705750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722 (or 712 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 35.

The square root of 164705750 is about 12833.7738019649. The cubic root of 164705750 is about 548.1544199592.

The spelling of 164705750 in words is "one hundred sixty-four million, seven hundred five thousand, seven hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 101 110 125 202 250 275 505 550 593 1010 1111 1186 1375 2222 2525 2750 2965 5050 5555 5930 6523 11110 12625 13046 14825 25250 27775 29650 32615 55550 59893 65230 74125 119786 138875 148250 163075 277750 299465 326150 598930 658823 815375 1317646 1497325 1630750 2994650 3294115 6588230 7486625 14973250 16470575 32941150 82352875 164705750