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2002025531 = 11414439081
BaseRepresentation
bin111011101010100…
…0111110000111011
312011112011102201202
41313111013300323
513100004304111
6530354204415
7100416636062
oct16725076073
95145142652
102002025531
11938100460
1247a58370b
1325ba062bc
1414dc651d9
15bab62b3b
hex77547c3b

2002025531 has 8 divisors (see below), whose sum is σ = 2237297328. Its totient is φ = 1775632000.

The previous prime is 2002025513. The next prime is 2002025569. The reversal of 2002025531 is 1355202002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2002025531 is a prime.

It is a super-2 number, since 2×20020255312 = 8016212453551663922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2002025591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2219090 + ... + 2219991.

It is an arithmetic number, because the mean of its divisors is an integer number (279662166).

Almost surely, 22002025531 is an apocalyptic number.

2002025531 is a deficient number, since it is larger than the sum of its proper divisors (235271797).

2002025531 is a wasteful number, since it uses less digits than its factorization.

2002025531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4439133.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 2002025531 is about 44743.9999441266. Note that the first 4 decimals coincide. The cubic root of 2002025531 is about 1260.3462412448.

Adding to 2002025531 its reverse (1355202002), we get a palindrome (3357227533).

The spelling of 2002025531 in words is "two billion, two million, twenty-five thousand, five hundred thirty-one".

Divisors: 1 11 41 451 4439081 48829891 182002321 2002025531