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164105424 = 24327712293
BaseRepresentation
bin10011100100000…
…00110011010000
3102102210102022200
421302000303100
5314002333144
624141203200
74031605320
oct1162006320
9372712280
10164105424
11846a691a
1246b60500
1327cca302
1417b1b280
15e618c69
hex9c80cd0

164105424 has 120 divisors (see below), whose sum is σ = 532501632. Its totient is φ = 46206720.

The previous prime is 164105423. The next prime is 164105429. The reversal of 164105424 is 424501461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164105423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70422 + ... + 72714.

Almost surely, 2164105424 is an apocalyptic number.

164105424 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 164105424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266250816).

164105424 is an abundant number, since it is smaller than the sum of its proper divisors (368396208).

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

164105424 is a wasteful number, since it uses less digits than its factorization.

164105424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2385 (or 2376 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 164105424 is about 12810.3639292567. The cubic root of 164105424 is about 547.4876309209.

Adding to 164105424 its reverse (424501461), we get a palindrome (588606885).

The spelling of 164105424 in words is "one hundred sixty-four million, one hundred five thousand, four hundred twenty-four".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 36 42 48 56 63 71 72 84 112 126 142 144 168 213 252 284 336 426 497 504 568 639 852 994 1008 1136 1278 1491 1704 1988 2293 2556 2982 3408 3976 4473 4586 5112 5964 6879 7952 8946 9172 10224 11928 13758 16051 17892 18344 20637 23856 27516 32102 35784 36688 41274 48153 55032 64204 71568 82548 96306 110064 128408 144459 162803 165096 192612 256816 288918 325606 330192 385224 488409 577836 651212 770448 976818 1139621 1155672 1302424 1465227 1953636 2279242 2311344 2604848 2930454 3418863 3907272 4558484 5860908 6837726 7814544 9116968 10256589 11721816 13675452 18233936 20513178 23443632 27350904 41026356 54701808 82052712 164105424