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50142313 = 137352837
BaseRepresentation
bin1011111101000…
…1110001101001
310111100111022201
42333101301221
5100314023223
64550420201
71146126334
oct277216151
9114314281
1050142313
1126338731
1214961661
13a508110
14693361b
154606ead
hex2fd1c69

50142313 has 8 divisors (see below), whose sum is σ = 54740168. Its totient is φ = 45650304.

The previous prime is 50142269. The next prime is 50142319. The reversal of 50142313 is 31324105.

It can be written as a sum of positive squares in 4 ways, for example, as 974169 + 49168144 = 987^2 + 7012^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 50142313 - 225 = 16587881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50142319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25470 + ... + 27367.

It is an arithmetic number, because the mean of its divisors is an integer number (6842521).

Almost surely, 250142313 is an apocalyptic number.

It is an amenable number.

50142313 is a deficient number, since it is larger than the sum of its proper divisors (4597855).

50142313 is a wasteful number, since it uses less digits than its factorization.

50142313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52923.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 50142313 is about 7081.1237102596. The cubic root of 50142313 is about 368.7523424921.

Adding to 50142313 its reverse (31324105), we get a palindrome (81466418).

The spelling of 50142313 in words is "fifty million, one hundred forty-two thousand, three hundred thirteen".

Divisors: 1 13 73 949 52837 686881 3857101 50142313