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52550320123 = 7137139394223
BaseRepresentation
bin110000111100001111…
…100011111111111011
312000122022200212010201
4300330033203333323
51330110340220443
640050303423031
73540150231250
oct607417437773
9160568625121
1052550320123
1120317316334
12a226bb4a77
134c5623a1a2
14278731d427
15157871034d
hexc3c3e3ffb

52550320123 has 16 divisors (see below), whose sum is σ = 60931261440. Its totient is φ = 44392550976.

The previous prime is 52550320093. The next prime is 52550320133. The reversal of 52550320123 is 32102305525.

It is a cyclic number.

It is not a de Polignac number, because 52550320123 - 229 = 52013449211 is a prime.

It is a super-2 number, since 2×525503201232 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52550320091 and 52550320100.

It is not an unprimeable number, because it can be changed into a prime (52550320133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63811 + ... + 330412.

It is an arithmetic number, because the mean of its divisors is an integer number (3808203840).

Almost surely, 252550320123 is an apocalyptic number.

52550320123 is a deficient number, since it is larger than the sum of its proper divisors (8380941317).

52550320123 is a wasteful number, since it uses less digits than its factorization.

52550320123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394506.

The product of its (nonzero) digits is 9000, while the sum is 28.

Adding to 52550320123 its reverse (32102305525), we get a palindrome (84652625648).

The spelling of 52550320123 in words is "fifty-two billion, five hundred fifty million, three hundred twenty thousand, one hundred twenty-three".

Divisors: 1 7 137 139 959 973 19043 133301 394223 2759561 54008551 54796997 378059857 383578979 7507188589 52550320123