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380045587 = 626960623
BaseRepresentation
bin10110101001110…
…000100100010011
3222111010022112111
4112221300210103
51234242424322
6101413410151
712263222425
oct2651604423
9874108474
10380045587
11185586969
12a7339957
1360975b5c
143868c815
1523571177
hex16a70913

380045587 has 4 divisors (see below), whose sum is σ = 380112480. Its totient is φ = 379978696.

The previous prime is 380045569. The next prime is 380045593. The reversal of 380045587 is 785540083.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 380045587 - 223 = 371656979 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (380345587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24043 + ... + 36580.

It is an arithmetic number, because the mean of its divisors is an integer number (95028120).

Almost surely, 2380045587 is an apocalyptic number.

380045587 is a deficient number, since it is larger than the sum of its proper divisors (66893).

380045587 is an equidigital number, since it uses as much as digits as its factorization.

380045587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66892.

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 380045587 is about 19494.7579364300. The cubic root of 380045587 is about 724.3446075520.

The spelling of 380045587 in words is "three hundred eighty million, forty-five thousand, five hundred eighty-seven".

Divisors: 1 6269 60623 380045587