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2213124004 = 2272131974409
BaseRepresentation
bin1000001111101001…
…1001011110100100
312201020101100101201
42003322121132210
514013024432004
61003334532244
7105562146400
oct20372313644
95636340351
102213124004
11a36283903
12519207084
13293678140
1416dcd6100
15ce4606a4
hex83e997a4

2213124004 has 72 divisors (see below), whose sum is σ = 4877583480. Its totient is φ = 870879744.

The previous prime is 2213123999. The next prime is 2213124037. The reversal of 2213124004 is 4004213122.

2213124004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 151782400 + 2061341604 = 12320^2 + 45402^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 499752 + ... + 504160.

It is an arithmetic number, because the mean of its divisors is an integer number (67744215).

Almost surely, 22213124004 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 2213124004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2438791740).

2213124004 is an abundant number, since it is smaller than the sum of its proper divisors (2664459476).

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

2213124004 is a wasteful number, since it uses less digits than its factorization.

2213124004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4637 (or 4628 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2213124004 is about 47043.8519256236. The cubic root of 2213124004 is about 1303.1725283663.

Adding to 2213124004 its reverse (4004213122), we get a palindrome (6217337126).

The spelling of 2213124004 in words is "two billion, two hundred thirteen million, one hundred twenty-four thousand, four".

Divisors: 1 2 4 7 13 14 26 28 49 52 91 98 182 196 197 364 394 637 788 1274 1379 2548 2561 2758 4409 5122 5516 8818 9653 10244 17636 17927 19306 30863 35854 38612 57317 61726 71708 114634 123452 125489 216041 229268 250978 401219 432082 501956 802438 864164 868573 1604876 1737146 2808533 3474292 5617066 6080011 11234132 11291449 12160022 22582898 24320044 42560077 45165796 79040143 85120154 158080286 170240308 316160572 553281001 1106562002 2213124004