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1072385 = 51391543
BaseRepresentation
bin100000101110100000001
32000111000222
410011310001
5233304020
634552425
712054326
oct4056401
92014028
101072385
11672776
12438715
132b7162
141dcb4d
15162b25
hex105d01

1072385 has 8 divisors (see below), whose sum is σ = 1296960. Its totient is φ = 851184.

The previous prime is 1072381. The next prime is 1072387. The reversal of 1072385 is 5832701.

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 1072385 - 22 = 1072381 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (1072381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77 + ... + 1466.

It is an arithmetic number, because the mean of its divisors is an integer number (162120).

21072385 is an apocalyptic number.

It is an amenable number.

1072385 is a deficient number, since it is larger than the sum of its proper divisors (224575).

1072385 is a wasteful number, since it uses less digits than its factorization.

1072385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1687.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 1072385 is about 1035.5602348488. The cubic root of 1072385 is about 102.3568495460.

The spelling of 1072385 in words is "one million, seventy-two thousand, three hundred eighty-five".

Divisors: 1 5 139 695 1543 7715 214477 1072385