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50145438 = 2371193939
BaseRepresentation
bin1011111101001…
…0100010011110
310111100122121110
42333102202132
5100314123223
64550442450
71146141420
oct277224236
9114318543
1050145438
1126340012
1214963426
13a509675
146934810
154607d93
hex2fd289e

50145438 has 16 divisors (see below), whose sum is σ = 114618240. Its totient is φ = 14327256.

The previous prime is 50145409. The next prime is 50145493. The reversal of 50145438 is 83454105.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 596928 + ... + 597011.

It is an arithmetic number, because the mean of its divisors is an integer number (7163640).

Almost surely, 250145438 is an apocalyptic number.

50145438 is an abundant number, since it is smaller than the sum of its proper divisors (64472802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50145438 is a wasteful number, since it uses less digits than its factorization.

50145438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193951.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 50145438 is about 7081.3443638902. The cubic root of 50145438 is about 368.7600028695.

The spelling of 50145438 in words is "fifty million, one hundred forty-five thousand, four hundred thirty-eight".

Divisors: 1 2 3 6 7 14 21 42 1193939 2387878 3581817 7163634 8357573 16715146 25072719 50145438