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2054545451 = 72471994483
BaseRepresentation
bin111101001110101…
…1110000000101011
312022011222201111222
41322131132000223
513201430423301
6535512012255
7101625230300
oct17235360053
95264881458
102054545451
11964812452
1249409108b
1326986468a
14156c170a7
15c058931b
hex7a75e02b

2054545451 has 24 divisors (see below), whose sum is σ = 2453644800. Its totient is φ = 1714526352.

The previous prime is 2054545439. The next prime is 2054545567. The reversal of 2054545451 is 1545454502.

It is not a de Polignac number, because 2054545451 - 218 = 2054283307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2054505451) by changing a digit.

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, 456056 + ... + 460538.

It is an arithmetic number, because the mean of its divisors is an integer number (102235200).

Almost surely, 22054545451 is an apocalyptic number.

2054545451 is a deficient number, since it is larger than the sum of its proper divisors (399099349).

2054545451 is a wasteful number, since it uses less digits than its factorization.

2054545451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4743 (or 4736 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 35.

The square root of 2054545451 is about 45327.0940056827. The cubic root of 2054545451 is about 1271.2723007226.

Adding to 2054545451 its reverse (1545454502), we get a palindrome (3599999953).

The spelling of 2054545451 in words is "two billion, fifty-four million, five hundred forty-five thousand, four hundred fifty-one".

Divisors: 1 7 47 49 199 329 1393 2303 4483 9353 9751 31381 65471 210701 219667 458297 892117 1474907 6244819 10324349 41929499 43713733 293506493 2054545451