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54261216245 = 5231181399523
BaseRepresentation
bin110010100010001110…
…000111001111110101
312012001120001101101202
4302202032013033311
51342111332404440
640532142102245
73630433504505
oct624216071765
9165046041352
1054261216245
1121015050975
12a623b7a985
135169830162
1428aa63da05
151628a17615
hexca23873f5

54261216245 has 16 divisors (see below), whose sum is σ = 68002180992. Its totient is φ = 41486364480.

The previous prime is 54261216241. The next prime is 54261216271.

54261216245 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 54261216245 - 22 = 54261216241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54261216199 and 54261216208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54261216241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63947 + ... + 335576.

It is an arithmetic number, because the mean of its divisors is an integer number (4250136312).

Almost surely, 254261216245 is an apocalyptic number.

It is an amenable number.

54261216245 is a deficient number, since it is larger than the sum of its proper divisors (13740964747).

54261216245 is a wasteful number, since it uses less digits than its factorization.

54261216245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400732.

The product of its digits is 115200, while the sum is 38.

The spelling of 54261216245 in words is "fifty-four billion, two hundred sixty-one million, two hundred sixteen thousand, two hundred forty-five".

Divisors: 1 5 23 115 1181 5905 27163 135815 399523 1997615 9189029 45945145 471836663 2359183315 10852243249 54261216245