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54143405323 = 7233743211373
BaseRepresentation
bin110010011011001100…
…101100110100001011
312011202100100222012021
4302123030230310023
51341341202432243
640512333025311
73624503231440
oct623314546413
9164670328167
1054143405323
1120a645a4877
12a5b0625237
13514b2c1757
142898b339c7
15161d4e56ed
hexc9b32cd0b

54143405323 has 32 divisors (see below), whose sum is σ = 67856126976. Its totient is φ = 42186469248.

The previous prime is 54143405317. The next prime is 54143405363. The reversal of 54143405323 is 32350434145.

It is a happy number.

54143405323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2k-54143405323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54143405363) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 150465 + ... + 361837.

It is an arithmetic number, because the mean of its divisors is an integer number (2120503968).

Almost surely, 254143405323 is an apocalyptic number.

54143405323 is a deficient number, since it is larger than the sum of its proper divisors (13712721653).

54143405323 is a wasteful number, since it uses less digits than its factorization.

54143405323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211483.

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 54143405323 its reverse (32350434145), we get a palindrome (86493839468).

The spelling of 54143405323 in words is "fifty-four billion, one hundred forty-three million, four hundred five thousand, three hundred twenty-three".

Divisors: 1 7 23 37 43 161 259 301 851 989 1591 5957 6923 11137 36593 211373 256151 1479611 4861579 7820801 9089039 34031053 54745607 63623273 179878423 209047897 336294443 1259148961 1463335279 2354061101 7734772189 54143405323