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40231210422 = 23132917785681
BaseRepresentation
bin100101011101111101…
…111000110110110110
310211211210010020120110
4211131331320312312
51124343142213142
630252034243450
72622652434444
oct453575706666
9124753106513
1040231210422
1116075518937
127969426586
133a41c46770
141d39195b94
1510a6e5899c
hex95df78db6

40231210422 has 32 divisors (see below), whose sum is σ = 89639837280. Its totient is φ = 11951976960.

The previous prime is 40231210367. The next prime is 40231210423. The reversal of 40231210422 is 22401213204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40231210423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8890579 + ... + 8895102.

It is an arithmetic number, because the mean of its divisors is an integer number (2801244915).

Almost surely, 240231210422 is an apocalyptic number.

40231210422 is an abundant number, since it is smaller than the sum of its proper divisors (49408626858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40231210422 is a wasteful number, since it uses less digits than its factorization.

40231210422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17785728.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 40231210422 its reverse (22401213204), we get a palindrome (62632423626).

The spelling of 40231210422 in words is "forty billion, two hundred thirty-one million, two hundred ten thousand, four hundred twenty-two".

Divisors: 1 2 3 6 13 26 29 39 58 78 87 174 377 754 1131 2262 17785681 35571362 53357043 106714086 231213853 462427706 515784749 693641559 1031569498 1387283118 1547354247 3094708494 6705201737 13410403474 20115605211 40231210422