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50513457 = 3198291069
BaseRepresentation
bin1100000010110…
…0011000110001
310112001100102210
43000230120301
5100412412312
65002402333
71152233361
oct300543061
9115040383
1050513457
1126571565
1214b003a9
13a608027
1469cc9a1
15467be3c
hex302c631

50513457 has 16 divisors (see below), whose sum is σ = 71048000. Its totient is φ = 31834944.

The previous prime is 50513453. The next prime is 50513459. The reversal of 50513457 is 75431505.

It is not a de Polignac number, because 50513457 - 22 = 50513453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50513453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46719 + ... + 47787.

It is an arithmetic number, because the mean of its divisors is an integer number (4440500).

Almost surely, 250513457 is an apocalyptic number.

50513457 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

It is an amenable number.

50513457 is a deficient number, since it is larger than the sum of its proper divisors (20534543).

50513457 is a wasteful number, since it uses less digits than its factorization.

50513457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1920.

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 50513457 is about 7107.2819699235. The cubic root of 50513457 is about 369.6599188265.

The spelling of 50513457 in words is "fifty million, five hundred thirteen thousand, four hundred fifty-seven".

Divisors: 1 3 19 57 829 1069 2487 3207 15751 20311 47253 60933 886201 2658603 16837819 50513457