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43215443268 = 223231495212017
BaseRepresentation
bin101000001111110101…
…110101010101000100
311010112202110222102220
4220033311311111010
51202001123141033
631504120532340
73056630130654
oct501765652504
9133482428386
1043215443268
1117366a9a178
1284609210b0
1340c929a40a
14213d656364
1511cde35bb3
hexa0fd75544

43215443268 has 96 divisors (see below), whose sum is σ = 106182316800. Its totient is φ = 13653319680.

The previous prime is 43215443239. The next prime is 43215443273. The reversal of 43215443268 is 86234451234.

43215443268 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21424596 + ... + 21426612.

It is an arithmetic number, because the mean of its divisors is an integer number (1106065800).

Almost surely, 243215443268 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 43215443268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53091158400).

43215443268 is an abundant number, since it is smaller than the sum of its proper divisors (62966873532).

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

43215443268 is a wasteful number, since it uses less digits than its factorization.

43215443268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2717 (or 2715 counting only the distinct ones).

The product of its digits is 552960, while the sum is 42.

The spelling of 43215443268 in words is "forty-three billion, two hundred fifteen million, four hundred forty-three thousand, two hundred sixty-eight".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 149 276 298 447 521 596 894 1042 1563 1788 2017 2084 3126 3427 4034 6051 6252 6854 8068 10281 11983 12102 13708 20562 23966 24204 35949 41124 46391 47932 71898 77629 92782 139173 143796 155258 185564 232887 278346 300533 310516 465774 556692 601066 901599 931548 1050857 1202132 1785467 1803198 2101714 3152571 3570934 3606396 4203428 5356401 6305142 6912259 7141868 10712802 12610284 13824518 20736777 21425604 24169711 27649036 41473554 48339422 72509133 82947108 96678844 145018266 156577693 290036532 313155386 469733079 626310772 939466158 1878932316 3601286939 7202573878 10803860817 14405147756 21607721634 43215443268