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50313220 = 22519113171
BaseRepresentation
bin1011111111101…
…1100000000100
310111200011202121
42333323200010
5100340010340
64554215324
71150440526
oct277734004
9114604677
1050313220
1126445081
1214a24544
13a567b49
146979a16
15463c94a
hex2ffb804

50313220 has 24 divisors (see below), whose sum is σ = 106219008. Its totient is φ = 20018400.

The previous prime is 50313203. The next prime is 50313223. The reversal of 50313220 is 2231305.

It is a junction number, because it is equal to n+sod(n) for n = 50313194 and 50313203.

It is not an unprimeable number, because it can be changed into a prime (50313223) 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, 2766 + ... + 10405.

It is an arithmetic number, because the mean of its divisors is an integer number (4425792).

Almost surely, 250313220 is an apocalyptic number.

It is an amenable number.

50313220 is an abundant number, since it is smaller than the sum of its proper divisors (55905788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50313220 is a wasteful number, since it uses less digits than its factorization.

50313220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13371 (or 13369 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 50313220 is about 7093.1812327051. The cubic root of 50313220 is about 369.1708239800.

Adding to 50313220 its reverse (2231305), we get a palindrome (52544525).

The spelling of 50313220 in words is "fifty million, three hundred thirteen thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 191 382 764 955 1910 3820 13171 26342 52684 65855 131710 263420 2515661 5031322 10062644 12578305 25156610 50313220