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380586987 = 32112349483
BaseRepresentation
bin10110101011110…
…100101111101011
3222112010211012100
4112223310233223
51234412240422
6101433144443
712300636024
oct2653645753
9875124170
10380586987
11185916700
12a755b123
1360b05401
143878dc4b
152362b7ac
hex16af4beb

380586987 has 18 divisors (see below), whose sum is σ = 604257836. Its totient is φ = 230658120.

The previous prime is 380586971. The next prime is 380587021. The reversal of 380586987 is 789685083.

It is a happy number.

It is not a de Polignac number, because 380586987 - 24 = 380586971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (380586187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 173653 + ... + 175830.

Almost surely, 2380586987 is an apocalyptic number.

380586987 is a deficient number, since it is larger than the sum of its proper divisors (223670849).

380586987 is a wasteful number, since it uses less digits than its factorization.

380586987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349511 (or 349497 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The square root of 380586987 is about 19508.6387787565. The cubic root of 380586987 is about 724.6884032368.

The spelling of 380586987 in words is "three hundred eighty million, five hundred eighty-six thousand, nine hundred eighty-seven".

Divisors: 1 3 9 11 33 99 121 363 1089 349483 1048449 3145347 3844313 11532939 34598817 42287443 126862329 380586987