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2031213033213 = 371347883179281
BaseRepresentation
bin11101100011101101101…
…110110011011011111101
321012011220201200020002020
4131203231232303123331
5231234411014030323
64153043144350353
7266515231623630
oct35435556633375
97164821606066
102031213033213
11713483892701
122897b51753b9
13119709034cb0
147045005bc17
1537c83368ae3
hex1d8edbb36fd

2031213033213 has 64 divisors (see below), whose sum is σ = 3408067633152. Its totient is φ = 1047419735040.

The previous prime is 2031213033209. The next prime is 2031213033221. The reversal of 2031213033213 is 3123303121302.

It is not a de Polignac number, because 2031213033213 - 22 = 2031213033209 is a prime.

It is a super-2 number, since 2×20312130332132 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031213033203) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11240133 + ... + 11419413.

It is an arithmetic number, because the mean of its divisors is an integer number (53251056768).

Almost surely, 22031213033213 is an apocalyptic number.

It is an amenable number.

2031213033213 is a deficient number, since it is larger than the sum of its proper divisors (1376854599939).

2031213033213 is a wasteful number, since it uses less digits than its factorization.

2031213033213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180234.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 2031213033213 its reverse (3123303121302), we get a palindrome (5154516154515).

The spelling of 2031213033213 in words is "two trillion, thirty-one billion, two hundred thirteen million, thirty-three thousand, two hundred thirteen".

Divisors: 1 3 7 13 21 39 47 91 141 273 329 611 883 987 1833 2649 4277 6181 11479 12831 18543 34437 41501 80353 124503 179281 241059 290507 537843 539513 871521 1254967 1618539 2330653 3764901 3776591 6991959 8426207 11329773 16314571 25278621 48943713 58983449 109540691 158305123 176950347 328622073 474915369 766784837 1108135861 2057966599 2300354511 3324407583 6173899797 7440340781 14405766193 22321022343 43217298579 52082385467 96724430153 156247156401 290173290459 677071011071 2031213033213