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50145447 = 31110314753
BaseRepresentation
bin1011111101001…
…0100010100111
310111100122121210
42333102202213
5100314123242
64550442503
71146141432
oct277224247
9114318553
1050145447
1126340020
1214963433
13a509681
146934819
154607d9c
hex2fd28a7

50145447 has 16 divisors (see below), whose sum is σ = 73651968. Its totient is φ = 30094080.

The previous prime is 50145409. The next prime is 50145493. The reversal of 50145447 is 74454105.

It is not a de Polignac number, because 50145447 - 214 = 50129063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50145647) 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, 3978 + ... + 10775.

It is an arithmetic number, because the mean of its divisors is an integer number (4603248).

Almost surely, 250145447 is an apocalyptic number.

50145447 is a deficient number, since it is larger than the sum of its proper divisors (23506521).

50145447 is a wasteful number, since it uses less digits than its factorization.

50145447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14870.

The product of its (nonzero) digits is 11200, while the sum is 30.

The square root of 50145447 is about 7081.3449993628. The cubic root of 50145447 is about 368.7600249309.

It can be divided in two parts, 501454 and 47, that added together give a triangular number (501501 = T1001).

The spelling of 50145447 in words is "fifty million, one hundred forty-five thousand, four hundred forty-seven".

Divisors: 1 3 11 33 103 309 1133 3399 14753 44259 162283 486849 1519559 4558677 16715149 50145447