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451345153145 = 52771621201037
BaseRepresentation
bin1101001000101100100…
…01000111110001111001
31121011000000112101211112
412210112101013301321
524343323324400040
6543202313010105
744415516334025
oct6442621076171
91534000471745
10451345153145
11164461632967
12735826b3935
133373bc95273
1417bb9409385
15bb193ec365
hex6916447c79

451345153145 has 16 divisors (see below), whose sum is σ = 543907504848. Its totient is φ = 359548865280.

The previous prime is 451345153123. The next prime is 451345153157. The reversal of 451345153145 is 541351543154.

It can be written as a sum of positive squares in 8 ways, for example, as 47679342736 + 403665810409 = 218356^2 + 635347^2 .

It is not a de Polignac number, because 451345153145 - 26 = 451345153081 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 2144567 + ... + 2345603.

It is an arithmetic number, because the mean of its divisors is an integer number (33994219053).

Almost surely, 2451345153145 is an apocalyptic number.

It is an amenable number.

451345153145 is a deficient number, since it is larger than the sum of its proper divisors (92562351703).

451345153145 is a wasteful number, since it uses less digits than its factorization.

451345153145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202940.

The product of its digits is 360000, while the sum is 41.

Adding to 451345153145 its reverse (541351543154), we get a palindrome (992696696299).

The spelling of 451345153145 in words is "four hundred fifty-one billion, three hundred forty-five million, one hundred fifty-three thousand, one hundred forty-five".

Divisors: 1 5 277 1385 1621 8105 201037 449017 1005185 2245085 55687249 278436245 325880977 1629404885 90269030629 451345153145