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247005052 = 22782710667
BaseRepresentation
bin11101011100011…
…11111101111100
3122012210011020021
432232033331330
51001213130202
640302101524
76056336230
oct1656177574
9565704207
10247005052
11117478608
126a87a8a4
133c234448
1424b3a5c0
1516a41a37
hexeb8ff7c

247005052 has 24 divisors (see below), whose sum is σ = 494653824. Its totient is φ = 105721392.

The previous prime is 247005047. The next prime is 247005071. The reversal of 247005052 is 250500742.

247005052 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2470050522 = 122022991427045408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17823 + ... + 28489.

It is an arithmetic number, because the mean of its divisors is an integer number (20610576).

Almost surely, 2247005052 is an apocalyptic number.

It is an amenable number.

247005052 is an abundant number, since it is smaller than the sum of its proper divisors (247648772).

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

247005052 is a wasteful number, since it uses less digits than its factorization.

247005052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11505 (or 11503 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 247005052 is about 15716.3943702110. The cubic root of 247005052 is about 627.4348134165.

Adding to 247005052 its reverse (250500742), we get a palindrome (497505794).

The spelling of 247005052 in words is "two hundred forty-seven million, five thousand, fifty-two".

Divisors: 1 2 4 7 14 28 827 1654 3308 5789 10667 11578 21334 23156 42668 74669 149338 298676 8821609 17643218 35286436 61751263 123502526 247005052