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742018212 = 2233131493547
BaseRepresentation
bin101100001110100…
…100110010100100
31220201020102122000
4230032210302210
53004424040322
6201344005300
724250023255
oct5416446244
91821212560
10742018212
113509392a1
12188600830
13ba961740
1470794b2c
15452223ac
hex2c3a4ca4

742018212 has 96 divisors (see below), whose sum is σ = 2086224000. Its totient is φ = 226717056.

The previous prime is 742018141. The next prime is 742018237. The reversal of 742018212 is 212810247.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 207423 + ... + 210969.

It is an arithmetic number, because the mean of its divisors is an integer number (21731500).

Almost surely, 2742018212 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 742018212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1043112000).

742018212 is an abundant number, since it is smaller than the sum of its proper divisors (1344205788).

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

742018212 is a wasteful number, since it uses less digits than its factorization.

742018212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3722 (or 3714 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 742018212 is about 27240.0112334779. The cubic root of 742018212 is about 905.3257120501.

Adding to 742018212 its reverse (212810247), we get a palindrome (954828459).

The spelling of 742018212 in words is "seven hundred forty-two million, eighteen thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 13 18 26 27 36 39 52 54 78 108 117 149 156 234 298 351 447 468 596 702 894 1341 1404 1788 1937 2682 3547 3874 4023 5364 5811 7094 7748 8046 10641 11622 14188 16092 17433 21282 23244 31923 34866 42564 46111 52299 63846 69732 92222 95769 104598 127692 138333 184444 191538 209196 276666 383076 414999 528503 553332 829998 1057006 1244997 1585509 1659996 2114012 2489994 3171018 4756527 4979988 6342036 6870539 9513054 13741078 14269581 19026108 20611617 27482156 28539162 41223234 57078324 61834851 82446468 123669702 185504553 247339404 371009106 742018212