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381126541 = 27111711201
BaseRepresentation
bin10110101101111…
…000011110001101
3222120011020022211
4112231320132031
51240032022131
6101452510421
712305344045
oct2655703615
9876136284
10381126541
11186155014
12a777b411
1360c63b83
1438890725
15236d65b1
hex16b7878d

381126541 has 8 divisors (see below), whose sum is σ = 383178368. Its totient is φ = 379080000.

The previous prime is 381126539. The next prime is 381126547. The reversal of 381126541 is 145621183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 381126541 - 21 = 381126539 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381126547) 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 7 ways as a sum of consecutive naturals, for example, 316741 + ... + 317941.

It is an arithmetic number, because the mean of its divisors is an integer number (47897296).

Almost surely, 2381126541 is an apocalyptic number.

It is an amenable number.

381126541 is a deficient number, since it is larger than the sum of its proper divisors (2051827).

381126541 is a wasteful number, since it uses less digits than its factorization.

381126541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2643.

The product of its digits is 5760, while the sum is 31.

The square root of 381126541 is about 19522.4624727517. The cubic root of 381126541 is about 725.0307024651.

The spelling of 381126541 in words is "three hundred eighty-one million, one hundred twenty-six thousand, five hundred forty-one".

Divisors: 1 271 1171 1201 317341 325471 1406371 381126541