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381014381 = 1134637671
BaseRepresentation
bin10110101101011…
…101000101101101
3222112221112110202
4112231131011231
51240014430011
6101450243245
712304366046
oct2655350555
9875845422
10381014381
11186088820
12a7726525
1360c24ac7
14388618cd
15236b323b
hex16b5d16d

381014381 has 4 divisors (see below), whose sum is σ = 415652064. Its totient is φ = 346376700.

The previous prime is 381014377. The next prime is 381014411. The reversal of 381014381 is 183410183.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 381014381 - 22 = 381014377 is a prime.

It is a super-2 number, since 2×3810143812 = 290343917057626322, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381014311) 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, 17318825 + ... + 17318846.

It is an arithmetic number, because the mean of its divisors is an integer number (103913016).

Almost surely, 2381014381 is an apocalyptic number.

It is an amenable number.

381014381 is a deficient number, since it is larger than the sum of its proper divisors (34637683).

381014381 is a wasteful number, since it uses less digits than its factorization.

381014381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34637682.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 381014381 is about 19519.5896729414. The cubic root of 381014381 is about 724.9595734890.

The spelling of 381014381 in words is "three hundred eighty-one million, fourteen thousand, three hundred eighty-one".

Divisors: 1 11 34637671 381014381