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4212864 = 27332353
BaseRepresentation
bin10000000100100010000000
321221000222000
4100010202000
52034302424
6230144000
750544255
oct20044200
97830860
104212864
112418207
1214b2000
13b46726
147b942c
155833c9
hex404880

4212864 has 128 divisors (see below), whose sum is σ = 13219200. Its totient is φ = 1317888.

The previous prime is 4212863. The next prime is 4212881. The reversal of 4212864 is 4682124.

It is a tau number, because it is divible by the number of its divisors (128).

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

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (4212863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79462 + ... + 79514.

It is an arithmetic number, because the mean of its divisors is an integer number (103275).

Almost surely, 24212864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4212864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6609600).

4212864 is an abundant number, since it is smaller than the sum of its proper divisors (9006336).

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

4212864 is a wasteful number, since it uses less digits than its factorization.

4212864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99 (or 81 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 4212864 is about 2052.5262483096. The cubic root of 4212864 is about 161.5074200951.

Adding to 4212864 its reverse (4682124), we get a palindrome (8894988).

The spelling of 4212864 in words is "four million, two hundred twelve thousand, eight hundred sixty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 23 24 27 32 36 46 48 53 54 64 69 72 92 96 106 108 128 138 144 159 184 192 207 212 216 276 288 318 368 384 414 424 432 477 552 576 621 636 736 828 848 864 954 1104 1152 1219 1242 1272 1431 1472 1656 1696 1728 1908 2208 2438 2484 2544 2862 2944 3312 3392 3456 3657 3816 4416 4876 4968 5088 5724 6624 6784 7314 7632 8832 9752 9936 10176 10971 11448 13248 14628 15264 19504 19872 20352 21942 22896 26496 29256 30528 32913 39008 39744 43884 45792 58512 61056 65826 78016 79488 87768 91584 117024 131652 156032 175536 183168 234048 263304 351072 468096 526608 702144 1053216 1404288 2106432 4212864