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50011213 = 723592843
BaseRepresentation
bin1011111011000…
…1110001001101
310111002211111011
42332301301031
5100300324323
64543525221
71145042200
oct276616115
9114084434
1050011213
112625918a
12148b9811
13a490545
1468db937
1545cd20d
hex2fb1c4d

50011213 has 12 divisors (see below), whose sum is σ = 58358880. Its totient is φ = 42732312.

The previous prime is 50011189. The next prime is 50011217. The reversal of 50011213 is 31211005.

It is not a de Polignac number, because 50011213 - 217 = 49880141 is a prime.

It is a super-2 number, since 2×500112132 = 5002242851462738, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50011193 and 50011202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50011217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16170 + ... + 19012.

It is an arithmetic number, because the mean of its divisors is an integer number (4863240).

Almost surely, 250011213 is an apocalyptic number.

It is an amenable number.

50011213 is a deficient number, since it is larger than the sum of its proper divisors (8347667).

50011213 is a wasteful number, since it uses less digits than its factorization.

50011213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3216 (or 3209 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 50011213 is about 7071.8606462515. The cubic root of 50011213 is about 368.4306871691.

Adding to 50011213 its reverse (31211005), we get a palindrome (81222218).

The spelling of 50011213 in words is "fifty million, eleven thousand, two hundred thirteen".

Divisors: 1 7 49 359 2513 2843 17591 19901 139307 1020637 7144459 50011213