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1107985 = 519107109
BaseRepresentation
bin100001110100000010001
32002021212111
410032200101
5240423420
635425321
712263164
oct4164021
92067774
101107985
1169749a
12455241
132ca418
1420badb
1516d45a
hex10e811

1107985 has 16 divisors (see below), whose sum is σ = 1425600. Its totient is φ = 824256.

The previous prime is 1107937. The next prime is 1107989. The reversal of 1107985 is 5897011.

It is a cyclic number.

It is not a de Polignac number, because 1107985 - 213 = 1099793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1107989) 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 15 ways as a sum of consecutive naturals, for example, 10111 + ... + 10219.

It is an arithmetic number, because the mean of its divisors is an integer number (89100).

21107985 is an apocalyptic number.

It is an amenable number.

1107985 is a deficient number, since it is larger than the sum of its proper divisors (317615).

1107985 is a wasteful number, since it uses less digits than its factorization.

1107985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240.

The product of its (nonzero) digits is 2520, while the sum is 31.

The square root of 1107985 is about 1052.6086642243. The cubic root of 1107985 is about 103.4771900849.

The spelling of 1107985 in words is "one million, one hundred seven thousand, nine hundred eighty-five".

Divisors: 1 5 19 95 107 109 535 545 2033 2071 10165 10355 11663 58315 221597 1107985