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2031982 = 21015991
BaseRepresentation
bin111110000000101101110
310211020100121
413300011232
51010010412
6111315154
723162101
oct7600556
93736317
102031982
111168727
1281baba
13561b74
143ac738
152a2107
hex1f016e

2031982 has 4 divisors (see below), whose sum is σ = 3047976. Its totient is φ = 1015990.

The previous prime is 2031979. The next prime is 2031983. The reversal of 2031982 is 2891302.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 507994 + ... + 507997.

It is an arithmetic number, because the mean of its divisors is an integer number (761994).

22031982 is an apocalyptic number.

2031982 is a deficient number, since it is larger than the sum of its proper divisors (1015994).

2031982 is a wasteful number, since it uses less digits than its factorization.

2031982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015993.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 2031982 is about 1425.4760608302. The cubic root of 2031982 is about 126.6601366286.

The spelling of 2031982 in words is "two million, thirty-one thousand, nine hundred eighty-two".

Divisors: 1 2 1015991 2031982