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380730991828 = 221116353085749
BaseRepresentation
bin1011000101001010101…
…01011110010011010100
31100101201210112100000111
411202211111132103110
522214214113214303
6450523322252404
736335604014425
oct5424525362324
91311653470014
10380730991828
111375157a0360
1261956057104
1329b97534365
14145db00164c
159d84e22b6d
hex58a555e4d4

380730991828 has 24 divisors (see below), whose sum is σ = 731309292000. Its totient is φ = 171997823520.

The previous prime is 380730991813. The next prime is 380730991829. The reversal of 380730991828 is 828199037083.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380730991829) 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 7 ways as a sum of consecutive naturals, for example, 26535703 + ... + 26550046.

It is an arithmetic number, because the mean of its divisors is an integer number (30471220500).

Almost surely, 2380730991828 is an apocalyptic number.

It is an amenable number.

380730991828 is a deficient number, since it is larger than the sum of its proper divisors (350578300172).

380730991828 is a wasteful number, since it uses less digits than its factorization.

380730991828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53085927 (or 53085925 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 58.

The spelling of 380730991828 in words is "three hundred eighty billion, seven hundred thirty million, nine hundred ninety-one thousand, eight hundred twenty-eight".

Divisors: 1 2 4 11 22 44 163 326 652 1793 3586 7172 53085749 106171498 212342996 583943239 1167886478 2335772956 8652977087 17305954174 34611908348 95182747957 190365495914 380730991828