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382803290 = 2538280329
BaseRepresentation
bin10110110100010…
…001110101011010
3222200022102101122
4112310101311122
51240444201130
6101552445242
712325526402
oct2664216532
9880272348
10382803290
1118709a861
12a8249822
136140012c
1438ba9802
15239182e5
hex16d11d5a

382803290 has 8 divisors (see below), whose sum is σ = 689045940. Its totient is φ = 153121312.

The previous prime is 382803251. The next prime is 382803293. The reversal of 382803290 is 92308283.

It can be written as a sum of positive squares in 2 ways, for example, as 382632721 + 170569 = 19561^2 + 413^2 .

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 382803290.

It is not an unprimeable number, because it can be changed into a prime (382803293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19140155 + ... + 19140174.

Almost surely, 2382803290 is an apocalyptic number.

382803290 is a deficient number, since it is larger than the sum of its proper divisors (306242650).

382803290 is a wasteful number, since it uses less digits than its factorization.

382803290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38280336.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 382803290 is about 19565.3594395810. The cubic root of 382803290 is about 726.0923936374.

The spelling of 382803290 in words is "three hundred eighty-two million, eight hundred three thousand, two hundred ninety".

Divisors: 1 2 5 10 38280329 76560658 191401645 382803290