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54402620445 = 3251546778163
BaseRepresentation
bin110010101010101001…
…100001110000011101
312012102102010110111100
4302222221201300131
51342404032323240
640554152543313
73634101433605
oct625251416035
9165372113440
1054402620445
1121087951a48
12a6633b1b39
13518cc0c694
1428c132bc05
151636149e30
hexcaaa61c1d

54402620445 has 24 divisors (see below), whose sum is σ = 94305178656. Its totient is φ = 29012483808.

The previous prime is 54402620423. The next prime is 54402620477.

54402620445 is a `hidden beast` number, since 5 + 4 + 402 + 6 + 204 + 45 = 666.

54402620445 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 54402620445 - 28 = 54402620189 is a prime.

It is a super-2 number, since 2×544026204452 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 656934 + ... + 735096.

It is an arithmetic number, because the mean of its divisors is an integer number (3929382444).

Almost surely, 254402620445 is an apocalyptic number.

It is an amenable number.

54402620445 is a deficient number, since it is larger than the sum of its proper divisors (39902558211).

54402620445 is a wasteful number, since it uses less digits than its factorization.

54402620445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93641 (or 93638 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 36.

The spelling of 54402620445 in words is "fifty-four billion, four hundred two million, six hundred twenty thousand, four hundred forty-five".

Divisors: 1 3 5 9 15 45 15467 46401 77335 78163 139203 232005 234489 390815 696015 703467 1172445 3517335 1208947121 3626841363 6044735605 10880524089 18134206815 54402620445