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50837940 = 22325594787
BaseRepresentation
bin1100000111101…
…1100110110100
310112122211112200
43001323212310
5101003303230
65013344500
71155054366
oct301734664
9115584480
1050837940
112677332a
1215038130
13a6bc92a
146a74d36
1546e3160
hex307b9b4

50837940 has 72 divisors (see below), whose sum is σ = 156854880. Its totient is φ = 13324224.

The previous prime is 50837893. The next prime is 50837951. The reversal of 50837940 is 4973805.

It is a super-2 number, since 2×508379402 = 5168992286887200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 50837895 and 50837904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8227 + ... + 13013.

It is an arithmetic number, because the mean of its divisors is an integer number (2178540).

Almost surely, 250837940 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 50837940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78427440).

50837940 is an abundant number, since it is smaller than the sum of its proper divisors (106016940).

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

50837940 is a wasteful number, since it uses less digits than its factorization.

50837940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4861 (or 4856 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 50837940 is about 7130.0729309033. The cubic root of 50837940 is about 370.4497574295.

The spelling of 50837940 in words is "fifty million, eight hundred thirty-seven thousand, nine hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 59 60 90 118 177 180 236 295 354 531 590 708 885 1062 1180 1770 2124 2655 3540 4787 5310 9574 10620 14361 19148 23935 28722 43083 47870 57444 71805 86166 95740 143610 172332 215415 282433 287220 430830 564866 847299 861660 1129732 1412165 1694598 2541897 2824330 3389196 4236495 5083794 5648660 8472990 10167588 12709485 16945980 25418970 50837940