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164079140 = 22514595623
BaseRepresentation
bin10011100011110…
…10011000100100
3102102202002021012
421301322120210
5314001013030
624140441352
74031435561
oct1161723044
9372662235
10164079140
11846890a5
1246b49258
1327cbb364
1417b11868
15e611095
hex9c7a624

164079140 has 24 divisors (see below), whose sum is σ = 344863680. Its totient is φ = 65575008.

The previous prime is 164079067. The next prime is 164079151. The reversal of 164079140 is 41970461.

It is a junction number, because it is equal to n+sod(n) for n = 164079097 and 164079106.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 26369 + ... + 31991.

It is an arithmetic number, because the mean of its divisors is an integer number (14369320).

Almost surely, 2164079140 is an apocalyptic number.

164079140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164079140 is an abundant number, since it is smaller than the sum of its proper divisors (180784540).

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

164079140 is a wasteful number, since it uses less digits than its factorization.

164079140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7091 (or 7089 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 164079140 is about 12809.3380000685. The cubic root of 164079140 is about 547.4583998472.

The spelling of 164079140 in words is "one hundred sixty-four million, seventy-nine thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 1459 2918 5623 5836 7295 11246 14590 22492 28115 29180 56230 112460 8203957 16407914 32815828 41019785 82039570 164079140