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50993357 = 311644947
BaseRepresentation
bin1100001010000…
…1100011001101
310112221201201212
43002201203031
5101023241412
65020544205
71156302452
oct302414315
9115851655
1050993357
112686a078
12150b2065
13a7455ac
146ab5829
154724222
hex30a18cd

50993357 has 4 divisors (see below), whose sum is σ = 52638336. Its totient is φ = 49348380.

The previous prime is 50993329. The next prime is 50993389. The reversal of 50993357 is 75339905.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75339905 = 515067981.

It is a cyclic number.

It is not a de Polignac number, because 50993357 - 28 = 50993101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50993317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 822443 + ... + 822504.

It is an arithmetic number, because the mean of its divisors is an integer number (13159584).

Almost surely, 250993357 is an apocalyptic number.

It is an amenable number.

50993357 is a deficient number, since it is larger than the sum of its proper divisors (1644979).

50993357 is a wasteful number, since it uses less digits than its factorization.

50993357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1644978.

The product of its (nonzero) digits is 127575, while the sum is 41.

The square root of 50993357 is about 7140.9633103665. The cubic root of 50993357 is about 370.8268748556.

The spelling of 50993357 in words is "fifty million, nine hundred ninety-three thousand, three hundred fifty-seven".

Divisors: 1 31 1644947 50993357