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164051460 = 22335461659
BaseRepresentation
bin10011100011100…
…11101000000100
3102102200200022000
421301303220010
5313444121320
624140105300
74031262066
oct1161635004
9372620260
10164051460
118466a321
1246b35230
1327cab891
1417b05736
15e607c90
hex9c73a04

164051460 has 96 divisors (see below), whose sum is σ = 512265600. Its totient is φ = 43585920.

The previous prime is 164051449. The next prime is 164051467. The reversal of 164051460 is 64150461.

164051460 is a `hidden beast` number, since 1 + 640 + 5 + 14 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (164051467) 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, 248611 + ... + 249269.

It is an arithmetic number, because the mean of its divisors is an integer number (5336100).

Almost surely, 2164051460 is an apocalyptic number.

164051460 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 164051460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256132800).

164051460 is an abundant number, since it is smaller than the sum of its proper divisors (348214140).

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

164051460 is a wasteful number, since it uses less digits than its factorization.

164051460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138 (or 1130 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 164051460 is about 12808.2574927271. The cubic root of 164051460 is about 547.4276128731.

Subtracting from 164051460 its reverse (64150461), we obtain a palindrome (99900999).

The spelling of 164051460 in words is "one hundred sixty-four million, fifty-one thousand, four hundred sixty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 90 108 135 180 270 461 540 659 922 1318 1383 1844 1977 2305 2636 2766 3295 3954 4149 4610 5532 5931 6590 6915 7908 8298 9220 9885 11862 12447 13180 13830 16596 17793 19770 20745 23724 24894 27660 29655 35586 39540 41490 49788 59310 62235 71172 82980 88965 118620 124470 177930 248940 303799 355860 607598 911397 1215196 1518995 1822794 2734191 3037990 3645588 4556985 5468382 6075980 8202573 9113970 10936764 13670955 16405146 18227940 27341910 32810292 41012865 54683820 82025730 164051460