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50504545 = 57213101157
BaseRepresentation
bin1100000010101…
…0001101100001
310112000220012201
43000222031201
5100412121140
65002253201
71152165400
oct300521541
9115026181
1050504545
11265658a3
1214ab7201
13a603c60
1469c9637
15467949a
hex302a361

50504545 has 48 divisors (see below), whose sum is σ = 77163408. Its totient is φ = 31449600.

The previous prime is 50504543. The next prime is 50504567. The reversal of 50504545 is 54540505.

It can be written as a sum of positive squares in 8 ways, for example, as 321489 + 50183056 = 567^2 + 7084^2 .

It is not a de Polignac number, because 50504545 - 21 = 50504543 is a prime.

50504545 is a modest number, since divided by 4545 gives 505 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50504543) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 321607 + ... + 321763.

It is an arithmetic number, because the mean of its divisors is an integer number (1607571).

Almost surely, 250504545 is an apocalyptic number.

It is an amenable number.

50504545 is a deficient number, since it is larger than the sum of its proper divisors (26658863).

50504545 is a wasteful number, since it uses less digits than its factorization.

50504545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290 (or 283 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 28.

The square root of 50504545 is about 7106.6549796652. The cubic root of 50504545 is about 369.6381780657.

The spelling of 50504545 in words is "fifty million, five hundred four thousand, five hundred forty-five".

Divisors: 1 5 7 13 35 49 65 91 101 157 245 455 505 637 707 785 1099 1313 2041 3185 3535 4949 5495 6565 7693 9191 10205 14287 15857 24745 38465 45955 64337 71435 79285 100009 110999 206141 321685 500045 554995 776993 1030705 1442987 3884965 7214935 10100909 50504545