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4200144444 = 2232718271987
BaseRepresentation
bin1111101001011001…
…0001111000111100
3101211201022110000100
43322112101320330
532100214110234
61532435401100
7206040432036
oct37226217074
911751273010
104200144444
111865965761
12992753190
1351c229692
142bbb72c56
15198b0c399
hexfa591e3c

4200144444 has 72 divisors (see below), whose sum is σ = 10785011328. Its totient is φ = 1377966240.

The previous prime is 4200144433. The next prime is 4200144449. The reversal of 4200144444 is 4444410024.

4200144444 is a `hidden beast` number, since 4 + 200 + 14 + 4 + 444 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4200144449) 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, 2112819 + ... + 2114805.

It is an arithmetic number, because the mean of its divisors is an integer number (149791824).

Almost surely, 24200144444 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 4200144444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5392505664).

4200144444 is an abundant number, since it is smaller than the sum of its proper divisors (6584866884).

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

4200144444 is a wasteful number, since it uses less digits than its factorization.

4200144444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2895 (or 2890 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 27.

The square root of 4200144444 is about 64808.5213841513. The cubic root of 4200144444 is about 1613.4471418512.

Adding to 4200144444 its reverse (4444410024), we get a palindrome (8644554468).

The spelling of 4200144444 in words is "four billion, two hundred million, one hundred forty-four thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 9 12 18 36 71 142 213 284 426 639 827 852 1278 1654 1987 2481 2556 3308 3974 4962 5961 7443 7948 9924 11922 14886 17883 23844 29772 35766 58717 71532 117434 141077 176151 234868 282154 352302 423231 528453 564308 704604 846462 1056906 1269693 1643249 1692924 2113812 2539386 3286498 4929747 5078772 6572996 9859494 14789241 19718988 29578482 59156964 116670679 233341358 350012037 466682716 700024074 1050036111 1400048148 2100072222 4200144444