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2031212043 = 32731934631
BaseRepresentation
bin111100100010001…
…1101011000001011
312020120002021002200
41321010131120023
513124442241133
6533315531243
7101223006000
oct17104353013
95216067080
102031212043
11952625743
124882b9b23
13264a84c23
14153aa18a7
15bd4ca913
hex7911d60b

2031212043 has 48 divisors (see below), whose sum is σ = 3601728000. Its totient is φ = 1099571760.

The previous prime is 2031212017. The next prime is 2031212063. The reversal of 2031212043 is 3402121302.

It is not a de Polignac number, because 2031212043 - 210 = 2031211019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2031212063) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 41338 + ... + 75968.

It is an arithmetic number, because the mean of its divisors is an integer number (75036000).

Almost surely, 22031212043 is an apocalyptic number.

2031212043 is a deficient number, since it is larger than the sum of its proper divisors (1570515957).

2031212043 is a wasteful number, since it uses less digits than its factorization.

2031212043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34677 (or 34660 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2031212043 is about 45068.9698462257. The cubic root of 2031212043 is about 1266.4413662150.

Adding to 2031212043 its reverse (3402121302), we get a palindrome (5433333345).

The spelling of 2031212043 in words is "two billion, thirty-one million, two hundred twelve thousand, forty-three".

Divisors: 1 3 7 9 19 21 49 57 63 133 147 171 343 399 441 931 1029 1197 2793 3087 6517 8379 19551 34631 58653 103893 242417 311679 657989 727251 1696919 1973967 2181753 4605923 5090757 5921901 11878433 13817769 15272271 32241461 35635299 41453307 96724383 106905897 225690227 290173149 677070681 2031212043