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50312380 = 22519314271
BaseRepresentation
bin1011111111101…
…1010010111100
310111200010121111
42333323102330
5100334444010
64554211404
71150435216
oct277732274
9114603544
1050312380
1126444488
1214a23b64
13a567651
1469795b6
15463c58a
hex2ffb4bc

50312380 has 48 divisors (see below), whose sum is σ = 114831360. Its totient is φ = 18446400.

The previous prime is 50312369. The next prime is 50312393. The reversal of 50312380 is 8321305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9645 + ... + 13915.

It is an arithmetic number, because the mean of its divisors is an integer number (2392320).

Almost surely, 250312380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50312380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57415680).

50312380 is an abundant number, since it is smaller than the sum of its proper divisors (64518980).

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

50312380 is a wasteful number, since it uses less digits than its factorization.

50312380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4330 (or 4328 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 50312380 is about 7093.1220206620. The cubic root of 50312380 is about 369.1687694821.

Adding to 50312380 its reverse (8321305), we get a palindrome (58633685).

The spelling of 50312380 in words is "fifty million, three hundred twelve thousand, three hundred eighty".

Divisors: 1 2 4 5 10 19 20 31 38 62 76 95 124 155 190 310 380 589 620 1178 2356 2945 4271 5890 8542 11780 17084 21355 42710 81149 85420 132401 162298 264802 324596 405745 529604 662005 811490 1324010 1622980 2515619 2648020 5031238 10062476 12578095 25156190 50312380