Search a number
-
+
380647186894 = 21370920649191
BaseRepresentation
bin1011000101000000101…
…01110010000111001110
31100101111221211121021001
411202200111302013032
522214031134440034
6450511130130514
736333535463242
oct5424025620716
91311457747231
10380647186894
11137482460487
1261931b80a3a
1329b83071140
14145cdc28422
159d7c8bba14
hex58a05721ce

380647186894 has 16 divisors (see below), whose sum is σ = 615758905440. Its totient is φ = 175435518240.

The previous prime is 380647186883. The next prime is 380647186901. The reversal of 380647186894 is 498681746083.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10306162 + ... + 10343029.

It is an arithmetic number, because the mean of its divisors is an integer number (38484931590).

Almost surely, 2380647186894 is an apocalyptic number.

380647186894 is a deficient number, since it is larger than the sum of its proper divisors (235111718546).

380647186894 is a wasteful number, since it uses less digits than its factorization.

380647186894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20649915.

The product of its (nonzero) digits is 55738368, while the sum is 64.

The spelling of 380647186894 in words is "three hundred eighty billion, six hundred forty-seven million, one hundred eighty-six thousand, eight hundred ninety-four".

Divisors: 1 2 13 26 709 1418 9217 18434 20649191 41298382 268439483 536878966 14640276419 29280552838 190323593447 380647186894