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381541027 = 71371912083
BaseRepresentation
bin10110101111011…
…101101010100011
3222120221021220011
4112233131222203
51240133303102
6101505425351
712312021340
oct2657355243
9876837804
10381541027
1118640846a
12a793b257
136107a72a
143895b7c7
15237692d7
hex16bddaa3

381541027 has 16 divisors (see below), whose sum is σ = 441741312. Its totient is φ = 322793280.

The previous prime is 381541019. The next prime is 381541049. The reversal of 381541027 is 720145183.

It is a cyclic number.

It is not a de Polignac number, because 381541027 - 23 = 381541019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 381541027.

It is not an unprimeable number, because it can be changed into a prime (381541057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182128 + ... + 184210.

It is an arithmetic number, because the mean of its divisors is an integer number (27608832).

Almost surely, 2381541027 is an apocalyptic number.

381541027 is a deficient number, since it is larger than the sum of its proper divisors (60200285).

381541027 is a wasteful number, since it uses less digits than its factorization.

381541027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2418.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 381541027 is about 19533.0752059168. The cubic root of 381541027 is about 725.2934377771.

The spelling of 381541027 in words is "three hundred eighty-one million, five hundred forty-one thousand, twenty-seven".

Divisors: 1 7 137 191 959 1337 2083 14581 26167 183169 285371 397853 1997597 2784971 54505861 381541027