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55220105323 = 3711871257317
BaseRepresentation
bin110011011011010111…
…111111000001101011
312021112101100222221001
4303123113333001223
51401042321332243
641211234255431
73663256102465
oct633327770153
9167471328831
1055220105323
1121467345489
12a851127577
1352903a4c46
14295bb29135
151682cc7a4d
hexcdb5ff06b

55220105323 has 8 divisors (see below), whose sum is σ = 56760363792. Its totient is φ = 53682363936.

The previous prime is 55220105321. The next prime is 55220105401. The reversal of 55220105323 is 32350102255.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55220105323 - 21 = 55220105321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55220105291 and 55220105300.

It is not an unprimeable number, because it can be changed into a prime (55220105321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 584740 + ... + 672577.

It is an arithmetic number, because the mean of its divisors is an integer number (7095045474).

Almost surely, 255220105323 is an apocalyptic number.

55220105323 is a deficient number, since it is larger than the sum of its proper divisors (1540258469).

55220105323 is a wasteful number, since it uses less digits than its factorization.

55220105323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1258541.

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

Adding to 55220105323 its reverse (32350102255), we get a palindrome (87570207578).

The spelling of 55220105323 in words is "fifty-five billion, two hundred twenty million, one hundred five thousand, three hundred twenty-three".

Divisors: 1 37 1187 43919 1257317 46520729 1492435279 55220105323