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52412302140 = 22351194783857
BaseRepresentation
bin110000110100000001…
…000100001100111100
312000021200222211001120
4300310001010030330
51324320022132030
640024453310540
73533553134412
oct606401041474
9160250884046
1052412302140
1120256418390
12a1a8935450
134c33775043
142772c732b2
15156b54b010
hexc3404433c

52412302140 has 96 divisors (see below), whose sum is σ = 160266726144. Its totient is φ = 12692444160.

The previous prime is 52412302109. The next prime is 52412302147. The reversal of 52412302140 is 4120321425.

It is a super-2 number, since 2×524123021402 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 52412302140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52412302147) by changing a digit.

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, 583092 + ... + 666948.

It is an arithmetic number, because the mean of its divisors is an integer number (1669445064).

Almost surely, 252412302140 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 52412302140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80133363072).

52412302140 is an abundant number, since it is smaller than the sum of its proper divisors (107854424004).

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

52412302140 is a wasteful number, since it uses less digits than its factorization.

52412302140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84827 (or 84825 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 52412302140 its reverse (4120321425), we get a palindrome (56532623565).

The spelling of 52412302140 in words is "fifty-two billion, four hundred twelve million, three hundred two thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 660 947 1894 2841 3788 4735 5682 9470 10417 11364 14205 18940 20834 28410 31251 41668 52085 56820 62502 83857 104170 125004 156255 167714 208340 251571 312510 335428 419285 503142 625020 838570 922427 1006284 1257855 1677140 1844854 2515710 2767281 3689708 4612135 5031420 5534562 9224270 11069124 13836405 18448540 27672810 55345620 79412579 158825158 238237737 317650316 397062895 476475474 794125790 873538369 952950948 1191188685 1588251580 1747076738 2382377370 2620615107 3494153476 4367691845 4764754740 5241230214 8735383690 10482460428 13103075535 17470767380 26206151070 52412302140