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164075560 = 235112331523
BaseRepresentation
bin10011100011110…
…01100000101000
3102102201220100121
421301321200220
5314000404220
624140413024
74031422255
oct1161714050
9372656317
10164075560
1184686440
1246b47174
1327cb983c
1417b1042c
15e60eeaa
hex9c79828

164075560 has 128 divisors (see below), whose sum is σ = 434626560. Its totient is φ = 55123200.

The previous prime is 164075557. The next prime is 164075567. The reversal of 164075560 is 65570461.

It is a happy number.

164075560 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (164075567) 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, 313459 + ... + 313981.

It is an arithmetic number, because the mean of its divisors is an integer number (3395520).

Almost surely, 2164075560 is an apocalyptic number.

164075560 is a gapful number since it is divisible by the number (10) 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 164075560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217313280).

164075560 is an abundant number, since it is smaller than the sum of its proper divisors (270551000).

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

164075560 is a wasteful number, since it uses less digits than its factorization.

164075560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599 (or 595 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 164075560 is about 12809.1982575023. The cubic root of 164075560 is about 547.4544182009.

The spelling of 164075560 in words is "one hundred sixty-four million, seventy-five thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 11 20 22 23 31 40 44 46 55 62 88 92 110 115 124 155 184 220 230 248 253 310 341 440 460 506 523 620 682 713 920 1012 1046 1240 1265 1364 1426 1705 2024 2092 2530 2615 2728 2852 3410 3565 4184 5060 5230 5704 5753 6820 7130 7843 10120 10460 11506 12029 13640 14260 15686 16213 20920 23012 24058 28520 28765 31372 32426 39215 46024 48116 57530 60145 62744 64852 78430 81065 96232 115060 120290 129704 132319 156860 162130 178343 230120 240580 264638 313720 324260 356686 372899 481160 529276 648520 661595 713372 745798 891715 1058552 1323190 1426744 1491596 1783430 1864495 2646380 2983192 3566860 3728990 4101889 5292760 7133720 7457980 8203778 14915960 16407556 20509445 32815112 41018890 82037780 164075560