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38560661 = 313349353
BaseRepresentation
bin1001001100011…
…0001110010101
32200120002021122
42103012032111
534332420121
63454253325
7645521516
oct223061625
980502248
1038560661
111a848217
1210ab7245
137cb1679
14519aa0d
1535ba5ab
hex24c6395

38560661 has 8 divisors (see below), whose sum is σ = 38904600. Its totient is φ = 38218752.

The previous prime is 38560591. The next prime is 38560663. The reversal of 38560661 is 16606583.

It can be written as a sum of positive squares in 4 ways, for example, as 504100 + 38056561 = 710^2 + 6169^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 38560661 - 210 = 38559637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38560663) 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, 109061 + ... + 109413.

It is an arithmetic number, because the mean of its divisors is an integer number (4863075).

Almost surely, 238560661 is an apocalyptic number.

It is an amenable number.

38560661 is a deficient number, since it is larger than the sum of its proper divisors (343939).

38560661 is a wasteful number, since it uses less digits than its factorization.

38560661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 38560661 is about 6209.7231017172. The cubic root of 38560661 is about 337.8429209546.

The spelling of 38560661 in words is "thirty-eight million, five hundred sixty thousand, six hundred sixty-one".

Divisors: 1 313 349 353 109237 110489 123197 38560661