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74435554212 = 223192347302009
BaseRepresentation
bin100010101010010110…
…1000110101110100100
321010010112121221101020
41011110231012232210
52204421000213322
654110100131140
75243403525405
oct1052455065644
9233115557336
1074435554212
1129627a25658
1212514396ab0
137033378746
143861b479ac
151e09c1e05c
hex1154b46ba4

74435554212 has 96 divisors (see below), whose sum is σ = 194832691200. Its totient is φ = 22005510912.

The previous prime is 74435554201. The next prime is 74435554213. The reversal of 74435554212 is 21245553447.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (74435554213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95464 + ... + 397472.

It is an arithmetic number, because the mean of its divisors is an integer number (2029507200).

Almost surely, 274435554212 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 74435554212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97416345600).

74435554212 is an abundant number, since it is smaller than the sum of its proper divisors (120397136988).

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

74435554212 is a wasteful number, since it uses less digits than its factorization.

74435554212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302105 (or 302103 counting only the distinct ones).

The product of its digits is 672000, while the sum is 42.

It can be divided in two parts, 7443 and 5554212, that added together give a palindrome (5561655).

The spelling of 74435554212 in words is "seventy-four billion, four hundred thirty-five million, five hundred fifty-four thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 19 23 38 46 47 57 69 76 92 94 114 138 141 188 228 276 282 437 564 874 893 1081 1311 1748 1786 2162 2622 2679 3243 3572 4324 5244 5358 6486 10716 12972 20539 41078 61617 82156 123234 246468 302009 604018 906027 1208036 1812054 3624108 5738171 6946207 11476342 13892414 14194423 17214513 20838621 22952684 27784828 28388846 34429026 41677242 42583269 56777692 68858052 83354484 85166538 131977933 170333076 263955866 269694037 326471729 395933799 527911732 539388074 652943458 791867598 809082111 979415187 1078776148 1305886916 1583735196 1618164222 1958830374 3236328444 3917660748 6202962851 12405925702 18608888553 24811851404 37217777106 74435554212