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420541750 = 25317531867
BaseRepresentation
bin11001000100001…
…111010100110110
31002022022201211101
4121010033110312
51330124314000
6105421400314
713264355146
oct3104172466
91068281741
10420541750
111a6426272
12b8a0909a
1369184495
143dbd0926
1526dbee6a
hex1910f536

420541750 has 64 divisors (see below), whose sum is σ = 849745728. Its totient is φ = 155251200.

The previous prime is 420541739. The next prime is 420541757. The reversal of 420541750 is 57145024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420541757) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 224317 + ... + 226183.

It is an arithmetic number, because the mean of its divisors is an integer number (13277277).

Almost surely, 2420541750 is an apocalyptic number.

420541750 is an abundant number, since it is smaller than the sum of its proper divisors (429203978).

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

420541750 is a wasteful number, since it uses less digits than its factorization.

420541750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1954 (or 1944 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 420541750 is about 20507.1146190779. The cubic root of 420541750 is about 749.2090921722.

Adding to 420541750 its reverse (57145024), we get a palindrome (477686774).

The spelling of 420541750 in words is "four hundred twenty million, five hundred forty-one thousand, seven hundred fifty".

Divisors: 1 2 5 10 17 25 34 50 53 85 106 125 170 250 265 425 530 850 901 1325 1802 1867 2125 2650 3734 4250 4505 6625 9010 9335 13250 18670 22525 31739 45050 46675 63478 93350 98951 112625 158695 197902 225250 233375 317390 466750 494755 793475 989510 1586950 1682167 2473775 3364334 3967375 4947550 7934750 8410835 12368875 16821670 24737750 42054175 84108350 210270875 420541750