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31322140101 = 337233737019
BaseRepresentation
bin11101001010111100…
…011110110111000101
32222211220010120122000
4131022330132313011
51003121431440401
622220022055513
72156122540500
oct351274366705
988756116560
1031322140101
11123135934aa
1260a187a599
132c52282615
141731c90137
15c34c3e186
hex74af1edc5

31322140101 has 48 divisors (see below), whose sum is σ = 54002894400. Its totient is φ = 17890510176.

The previous prime is 31322140079. The next prime is 31322140103. The reversal of 31322140101 is 10104122313.

It is not a de Polignac number, because 31322140101 - 26 = 31322140037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31322140103) 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, 4458970 + ... + 4465988.

It is an arithmetic number, because the mean of its divisors is an integer number (1125060300).

Almost surely, 231322140101 is an apocalyptic number.

It is an amenable number.

31322140101 is a deficient number, since it is larger than the sum of its proper divisors (22680754299).

31322140101 is a wasteful number, since it uses less digits than its factorization.

31322140101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10415 (or 10402 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 31322140101 its reverse (10104122313), we get a palindrome (41426262414).

The spelling of 31322140101 in words is "thirty-one billion, three hundred twenty-two million, one hundred forty thousand, one hundred one".

Divisors: 1 3 7 9 21 27 49 63 147 189 441 1323 3373 7019 10119 21057 23611 30357 49133 63171 70833 91071 147399 165277 189513 212499 343931 442197 495831 637497 1031793 1326591 1487493 3095379 4462479 9286137 23675087 71025261 165725609 213075783 497176827 639227349 1160079263 1491530481 3480237789 4474591443 10440713367 31322140101