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505250245 = 5313259679
BaseRepresentation
bin11110000111011…
…000000111000101
31022012201101001001
4132013120013011
52013321001440
6122045133301
715343361533
oct3607300705
91265641031
10505250245
1123a222a95
1212125a231
13808a2a56
144b161153
152e553b9a
hex1e1d81c5

505250245 has 8 divisors (see below), whose sum is σ = 625858560. Its totient is φ = 391161360.

The previous prime is 505250243. The next prime is 505250287. The reversal of 505250245 is 542052505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 505250245 - 21 = 505250243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505250243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1629685 + ... + 1629994.

It is an arithmetic number, because the mean of its divisors is an integer number (78232320).

Almost surely, 2505250245 is an apocalyptic number.

It is an amenable number.

505250245 is a deficient number, since it is larger than the sum of its proper divisors (120608315).

505250245 is a wasteful number, since it uses less digits than its factorization.

505250245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3259715.

The product of its (nonzero) digits is 10000, while the sum is 28.

The square root of 505250245 is about 22477.7722428180. The cubic root of 505250245 is about 796.4689400543.

The spelling of 505250245 in words is "five hundred five million, two hundred fifty thousand, two hundred forty-five".

Divisors: 1 5 31 155 3259679 16298395 101050049 505250245