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4218669380 = 225210933469
BaseRepresentation
bin1111101101110011…
…1100100101000100
3101220000011121110002
43323130330211010
532114434410010
61534340420432
7206354045432
oct37334744504
911800147402
104218669380
111875368822
129989a7718
13523014593
142c03d5d52
1519a56b1a5
hexfb73c944

4218669380 has 12 divisors (see below), whose sum is σ = 8859205740. Its totient is φ = 1687467744.

The previous prime is 4218669349. The next prime is 4218669383. The reversal of 4218669380 is 839668124.

It can be written as a sum of positive squares in 2 ways, for example, as 1807270144 + 2411399236 = 42512^2 + 49106^2 .

It is not an unprimeable number, because it can be changed into a prime (4218669383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105466715 + ... + 105466754.

It is an arithmetic number, because the mean of its divisors is an integer number (738267145).

Almost surely, 24218669380 is an apocalyptic number.

It is an amenable number.

4218669380 is an abundant number, since it is smaller than the sum of its proper divisors (4640536360).

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

4218669380 is a wasteful number, since it uses less digits than its factorization.

4218669380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210933478 (or 210933476 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 47.

The square root of 4218669380 is about 64951.2846678185. The cubic root of 4218669380 is about 1615.8157246865.

The spelling of 4218669380 in words is "four billion, two hundred eighteen million, six hundred sixty-nine thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 210933469 421866938 843733876 1054667345 2109334690 4218669380