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2020931 = 11414481
BaseRepresentation
bin111101101011001000011
310210200012022
413231121003
51004132211
6111152055
723114633
oct7553103
93720168
102020931
1111603a0
1281562b
13559b23
143a86c3
1529dbdb
hex1ed643

2020931 has 8 divisors (see below), whose sum is σ = 2258928. Its totient is φ = 1792000.

The previous prime is 2020913. The next prime is 2020933. The reversal of 2020931 is 1390202.

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 2020931 - 210 = 2019907 is a prime.

It is a super-2 number, since 2×20209312 = 8168324213522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2020933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1790 + ... + 2691.

It is an arithmetic number, because the mean of its divisors is an integer number (282366).

22020931 is an apocalyptic number.

2020931 is a deficient number, since it is larger than the sum of its proper divisors (237997).

2020931 is a wasteful number, since it uses less digits than its factorization.

2020931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4533.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2020931 is about 1421.5945272827. The cubic root of 2020931 is about 126.4301040232.

The spelling of 2020931 in words is "two million, twenty thousand, nine hundred thirty-one".

Divisors: 1 11 41 451 4481 49291 183721 2020931