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352885805 = 5247728493
BaseRepresentation
bin10101000010001…
…001110000101101
3220121000110022122
4111002021300231
51210314321210
655003322325
711513323406
oct2502116055
9817013278
10352885805
11171216368
129a2203a5
135815688c
1434c1c9ad
1520ea8b55
hex15089c2d

352885805 has 8 divisors (see below), whose sum is σ = 423648792. Its totient is φ = 282184768.

The previous prime is 352885787. The next prime is 352885807. The reversal of 352885805 is 508588253.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 39100009 + 313785796 = 6253^2 + 17714^2 .

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 352885805 - 210 = 352884781 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (352885807) 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, 1862 + ... + 26631.

It is an arithmetic number, because the mean of its divisors is an integer number (52956099).

Almost surely, 2352885805 is an apocalyptic number.

It is an amenable number.

352885805 is a deficient number, since it is larger than the sum of its proper divisors (70762987).

352885805 is a wasteful number, since it uses less digits than its factorization.

352885805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30975.

The product of its (nonzero) digits is 384000, while the sum is 44.

The square root of 352885805 is about 18785.2549889534. The cubic root of 352885805 is about 706.6614437087.

The spelling of 352885805 in words is "three hundred fifty-two million, eight hundred eighty-five thousand, eight hundred five".

Divisors: 1 5 2477 12385 28493 142465 70577161 352885805