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381127835 = 51113750581
BaseRepresentation
bin10110101101111…
…000110010011011
3222120011022002202
4112231320302123
51240032042320
6101452520415
712305350604
oct2655706233
9876138082
10381127835
11186155a90
12a778010b
1360c6463a
1438890dab
15236d6b75
hex16b78c9b

381127835 has 16 divisors (see below), whose sum is σ = 502582752. Its totient is φ = 275155200.

The previous prime is 381127793. The next prime is 381127849. The reversal of 381127835 is 538721183.

It is a happy number.

It is not a de Polignac number, because 381127835 - 26 = 381127771 is a prime.

It is a super-2 number, since 2×3811278352 = 290516853223574450, which contains 22 as substring.

It is a Duffinian 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 15 ways as a sum of consecutive naturals, for example, 17756 + ... + 32825.

It is an arithmetic number, because the mean of its divisors is an integer number (31411422).

Almost surely, 2381127835 is an apocalyptic number.

381127835 is a deficient number, since it is larger than the sum of its proper divisors (121454917).

381127835 is a wasteful number, since it uses less digits than its factorization.

381127835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50734.

The product of its digits is 40320, while the sum is 38.

The square root of 381127835 is about 19522.4956140346. The cubic root of 381127835 is about 725.0315230051.

The spelling of 381127835 in words is "three hundred eighty-one million, one hundred twenty-seven thousand, eight hundred thirty-five".

Divisors: 1 5 11 55 137 685 1507 7535 50581 252905 556391 2781955 6929597 34647985 76225567 381127835