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50290357 = 1373197269
BaseRepresentation
bin1011111111010…
…1111010110101
310111122000101211
42333311322311
5100333242412
64553521421
71150314055
oct277657265
9114560354
1050290357
1126429987
1214a13271
13a55a610
146971565
154635ca7
hex2ff5eb5

50290357 has 16 divisors (see below), whose sum is σ = 55384560. Its totient is φ = 45384192.

The previous prime is 50290337. The next prime is 50290367. The reversal of 50290357 is 75309205.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 531441 + 49758916 = 729^2 + 7054^2 .

It is a cyclic number.

It is not a de Polignac number, because 50290357 - 219 = 49766069 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 (50290337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186819 + ... + 187087.

It is an arithmetic number, because the mean of its divisors is an integer number (3461535).

Almost surely, 250290357 is an apocalyptic number.

It is an amenable number.

50290357 is a deficient number, since it is larger than the sum of its proper divisors (5094203).

50290357 is a wasteful number, since it uses less digits than its factorization.

50290357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552.

The product of its (nonzero) digits is 9450, while the sum is 31.

The square root of 50290357 is about 7091.5694313741. The cubic root of 50290357 is about 369.1148967881.

The spelling of 50290357 in words is "fifty million, two hundred ninety thousand, three hundred fifty-seven".

Divisors: 1 13 73 197 269 949 2561 3497 14381 19637 52993 186953 255281 688909 3868489 50290357