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82252660 = 2257587519
BaseRepresentation
bin1001110011100…
…01001101110100
312201202212102211
410321301031310
5132024041120
612054543204
72016064450
oct471611564
9181685384
1082252660
114247a706
1223667b04
131406b819
14acd1660
15734b25a
hex4e71374

82252660 has 24 divisors (see below), whose sum is σ = 197406720. Its totient is φ = 28200864.

The previous prime is 82252649. The next prime is 82252663. The reversal of 82252660 is 6625228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82252663) 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, 293620 + ... + 293899.

It is an arithmetic number, because the mean of its divisors is an integer number (8225280).

Almost surely, 282252660 is an apocalyptic number.

It is an amenable number.

82252660 is an abundant number, since it is smaller than the sum of its proper divisors (115154060).

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

82252660 is a wasteful number, since it uses less digits than its factorization.

82252660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587535 (or 587533 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 82252660 is about 9069.3252229700. The cubic root of 82252660 is about 434.8939011069.

Adding to 82252660 its reverse (6625228), we get a palindrome (88877888).

The spelling of 82252660 in words is "eighty-two million, two hundred fifty-two thousand, six hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 587519 1175038 2350076 2937595 4112633 5875190 8225266 11750380 16450532 20563165 41126330 82252660