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381359051 = 1920071529
BaseRepresentation
bin10110101110110…
…001001111001011
3222120121001021022
4112232301033023
51240111442201
6101501503055
712310332653
oct2656611713
9876531238
10381359051
111862a3777
12a7871a8b
1361015958
1438911363
152373041b
hex16bb13cb

381359051 has 4 divisors (see below), whose sum is σ = 401430600. Its totient is φ = 361287504.

The previous prime is 381359039. The next prime is 381359053. The reversal of 381359051 is 150953183.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-381359051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381359053) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 10035746 + ... + 10035783.

It is an arithmetic number, because the mean of its divisors is an integer number (100357650).

Almost surely, 2381359051 is an apocalyptic number.

381359051 is a deficient number, since it is larger than the sum of its proper divisors (20071549).

381359051 is a wasteful number, since it uses less digits than its factorization.

381359051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20071548.

The product of its (nonzero) digits is 16200, while the sum is 35.

The square root of 381359051 is about 19528.4165000647. The cubic root of 381359051 is about 725.1781098670.

The spelling of 381359051 in words is "three hundred eighty-one million, three hundred fifty-nine thousand, fifty-one".

Divisors: 1 19 20071529 381359051