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53323243350 = 23521329772153
BaseRepresentation
bin110001101010010100…
…000001111101010110
312002122012002102110220
4301222110001331112
51333201222241400
640255114055210
73565254042606
oct615224017526
9162565072426
1053323243350
1120683642a63
12a401a1a506
13504a3cc800
14281bc3ac06
1515c14d97a0
hexc6a501f56

53323243350 has 144 divisors (see below), whose sum is σ = 143409718512. Its totient is φ = 13106196480.

The previous prime is 53323243321. The next prime is 53323243357. The reversal of 53323243350 is 5334232335.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53323243357) 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 71 ways as a sum of consecutive naturals, for example, 24765874 + ... + 24768026.

It is an arithmetic number, because the mean of its divisors is an integer number (995900823).

Almost surely, 253323243350 is an apocalyptic number.

53323243350 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 53323243350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71704859256).

53323243350 is an abundant number, since it is smaller than the sum of its proper divisors (90086475162).

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

53323243350 is a wasteful number, since it uses less digits than its factorization.

53323243350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3171 (or 3153 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 33.

Adding to 53323243350 its reverse (5334232335), we get a palindrome (58657475685).

The spelling of 53323243350 in words is "fifty-three billion, three hundred twenty-three million, two hundred forty-three thousand, three hundred fifty".

Divisors: 1 2 3 5 6 10 13 15 25 26 30 39 50 65 75 78 130 150 169 195 325 338 390 507 650 845 975 977 1014 1690 1950 1954 2153 2535 2931 4225 4306 4885 5070 5862 6459 8450 9770 10765 12675 12701 12918 14655 21530 24425 25350 25402 27989 29310 32295 38103 48850 53825 55978 63505 64590 73275 76206 83967 107650 127010 139945 146550 161475 165113 167934 190515 279890 317525 322950 330226 363857 381030 419835 495339 635050 699725 727714 825565 839670 952575 990678 1091571 1399450 1651130 1819285 1905150 2099175 2103481 2183142 2476695 3638570 4127825 4198350 4206962 4953390 5457855 6310443 8255650 9096425 10517405 10915710 12383475 12620886 18192850 21034810 24766950 27289275 27345253 31552215 52587025 54578550 54690506 63104430 82035759 105174050 136726265 157761075 164071518 273452530 315522150 355488289 410178795 683631325 710976578 820357590 1066464867 1367262650 1777441445 2050893975 2132929734 3554882890 4101787950 5332324335 8887207225 10664648670 17774414450 26661621675 53323243350