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50723240 = 2351797769
BaseRepresentation
bin1100000101111…
…1100110101000
310112110000012112
43001133212220
5100441120430
65011101452
71154066111
oct301374650
9115400175
1050723240
11266a5137
1214ba1888
13a67c669
146a45208
1546be195
hex305f9a8

50723240 has 64 divisors (see below), whose sum is σ = 122245200. Its totient is φ = 18874368.

The previous prime is 50723237. The next prime is 50723249. The reversal of 50723240 is 4232705.

50723240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 25180324 + 25542916 = 5018^2 + 5054^2 .

It is not an unprimeable number, because it can be changed into a prime (50723249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65576 + ... + 66344.

Almost surely, 250723240 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 50723240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61122600).

50723240 is an abundant number, since it is smaller than the sum of its proper divisors (71521960).

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

50723240 is a wasteful number, since it uses less digits than its factorization.

50723240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894 (or 890 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 50723240 is about 7122.0249929356. The cubic root of 50723240 is about 370.1709460871.

Adding to 50723240 its reverse (4232705), we get a palindrome (54955945).

The spelling of 50723240 in words is "fifty million, seven hundred twenty-three thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 17 20 34 40 68 85 97 136 170 194 340 388 485 680 769 776 970 1538 1649 1940 3076 3298 3845 3880 6152 6596 7690 8245 13073 13192 15380 16490 26146 30760 32980 52292 65365 65960 74593 104584 130730 149186 261460 298372 372965 522920 596744 745930 1268081 1491860 2536162 2983720 5072324 6340405 10144648 12680810 25361620 50723240