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506768290 = 25721034221
BaseRepresentation
bin11110001101001…
…010101110100010
31022022120111101221
4132031022232202
52014213041130
6122141445254
715362313400
oct3615125642
91268514357
10506768290
1124006a576
1212187082a
1380cb49c2
144b438470
152e75387a
hex1e34aba2

506768290 has 24 divisors (see below), whose sum is σ = 1061111772. Its totient is φ = 173748960.

The previous prime is 506768279. The next prime is 506768299. The reversal of 506768290 is 92867605.

It can be written as a sum of positive squares in 2 ways, for example, as 484044001 + 22724289 = 22001^2 + 4767^2 .

It is not an unprimeable number, because it can be changed into a prime (506768299) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 516621 + ... + 517600.

Almost surely, 2506768290 is an apocalyptic number.

506768290 is an abundant number, since it is smaller than the sum of its proper divisors (554343482).

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

506768290 is a wasteful number, since it uses less digits than its factorization.

506768290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034242 (or 1034235 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 506768290 is about 22511.5146091950. The cubic root of 506768290 is about 797.2658169916.

The spelling of 506768290 in words is "five hundred six million, seven hundred sixty-eight thousand, two hundred ninety".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 1034221 2068442 5171105 7239547 10342210 14479094 36197735 50676829 72395470 101353658 253384145 506768290