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2007985 = 57103557
BaseRepresentation
bin111101010001110110001
310210000102211
413222032301
51003223420
6111012121
723032120
oct7521661
93700384
102007985
1111516a1
1280a041
13553c75
143a3ab7
15299e5a
hex1ea3b1

2007985 has 16 divisors (see below), whose sum is σ = 2785536. Its totient is φ = 1361088.

The previous prime is 2007979. The next prime is 2008003. The reversal of 2007985 is 5897002.

It is a cyclic number.

It is not a de Polignac number, because 2007985 - 211 = 2005937 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3327 + ... + 3883.

It is an arithmetic number, because the mean of its divisors is an integer number (174096).

22007985 is an apocalyptic number.

It is an amenable number.

2007985 is a deficient number, since it is larger than the sum of its proper divisors (777551).

2007985 is a wasteful number, since it uses less digits than its factorization.

2007985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 2007985 is about 1417.0338739776. The cubic root of 2007985 is about 126.1595568294.

It can be divided in two parts, 20079 and 85, that added together give a square (20164 = 1422).

The spelling of 2007985 in words is "two million, seven thousand, nine hundred eighty-five".

Divisors: 1 5 7 35 103 515 557 721 2785 3605 3899 19495 57371 286855 401597 2007985