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50512490 = 25729149167
BaseRepresentation
bin1100000010110…
…0001001101010
310112001022002222
43000230021222
5100412344430
65002354042
71152230510
oct300541152
9115038088
1050512490
1126570866
1214abb922
13a607762
1469cc4b0
15467b9e5
hex302c26a

50512490 has 64 divisors (see below), whose sum is σ = 108864000. Its totient is φ = 16509696.

The previous prime is 50512489. The next prime is 50512493. The reversal of 50512490 is 9421505.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50512493) 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, 302387 + ... + 302553.

It is an arithmetic number, because the mean of its divisors is an integer number (1701000).

Almost surely, 250512490 is an apocalyptic number.

50512490 is an abundant number, since it is smaller than the sum of its proper divisors (58351510).

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

50512490 is a wasteful number, since it uses less digits than its factorization.

50512490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 50512490 is about 7107.2139407788. The cubic root of 50512490 is about 369.6575599606.

Adding to 50512490 its reverse (9421505), we get a palindrome (59933995).

The spelling of 50512490 in words is "fifty million, five hundred twelve thousand, four hundred ninety".

Divisors: 1 2 5 7 10 14 29 35 58 70 145 149 167 203 290 298 334 406 745 835 1015 1043 1169 1490 1670 2030 2086 2338 4321 4843 5215 5845 8642 9686 10430 11690 21605 24215 24883 30247 33901 43210 48430 49766 60494 67802 124415 151235 169505 174181 248830 302470 339010 348362 721607 870905 1443214 1741810 3608035 5051249 7216070 10102498 25256245 50512490