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50142434 = 225071217
BaseRepresentation
bin1011111101000…
…1110011100010
310111100111111012
42333101303202
5100314024214
64550420522
71146126566
oct277216342
9114314435
1050142434
1126338831
1214961742
13a5081a4
1469336a6
15460703e
hex2fd1ce2

50142434 has 4 divisors (see below), whose sum is σ = 75213654. Its totient is φ = 25071216.

The previous prime is 50142413. The next prime is 50142451. The reversal of 50142434 is 43424105.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43424105 = 58684821.

It can be written as a sum of positive squares in only one way, i.e., 35343025 + 14799409 = 5945^2 + 3847^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12535607 + ... + 12535610.

Almost surely, 250142434 is an apocalyptic number.

50142434 is a deficient number, since it is larger than the sum of its proper divisors (25071220).

50142434 is a wasteful number, since it uses less digits than its factorization.

50142434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25071219.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 50142434 is about 7081.1322540961. The cubic root of 50142434 is about 368.7526391078.

Adding to 50142434 its reverse (43424105), we get a palindrome (93566539).

The spelling of 50142434 in words is "fifty million, one hundred forty-two thousand, four hundred thirty-four".

Divisors: 1 2 25071217 50142434