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380028317 = 3119121843
BaseRepresentation
bin10110101001101…
…100010110011101
3222111002102211212
4112221230112131
51234241401232
6101413154205
712263121164
oct2651542635
9874072755
10380028317
11185574999
12a732b965
136096b036
14386863db
152356aeb2
hex16a6c59d

380028317 has 4 divisors (see below), whose sum is σ = 380153280. Its totient is φ = 379903356.

The previous prime is 380028293. The next prime is 380028331. The reversal of 380028317 is 713820083.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 380028317 - 222 = 375834013 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 (380028347) 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, 57803 + ... + 64040.

It is an arithmetic number, because the mean of its divisors is an integer number (95038320).

Almost surely, 2380028317 is an apocalyptic number.

It is an amenable number.

380028317 is a deficient number, since it is larger than the sum of its proper divisors (124963).

380028317 is a wasteful number, since it uses less digits than its factorization.

380028317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124962.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 380028317 is about 19494.3149918124. The cubic root of 380028317 is about 724.3336355167. Note that the first 3 decimals are identical.

The spelling of 380028317 in words is "three hundred eighty million, twenty-eight thousand, three hundred seventeen".

Divisors: 1 3119 121843 380028317