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20031323331032 = 2313192608878183
BaseRepresentation
bin1001000110111111001111…
…11010010101100111011000
32121220222100100211120221022
410203133213322111213120
510111143122233043112
6110334132441502012
74135133602652456
oct443374772254730
977828310746838
1020031323331032
116423266894282
1222b62557a1908
13b23c3a892440
144d374233b9d6
1524b0d9c5cd72
hex1237e7e959d8

20031323331032 has 16 divisors (see below), whose sum is σ = 40447864418640. Its totient is φ = 9245226152736.

The previous prime is 20031323331031. The next prime is 20031323331037. The reversal of 20031323331032 is 23013332313002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 20031323330992 and 20031323331010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20031323331031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96304438988 + ... + 96304439195.

It is an arithmetic number, because the mean of its divisors is an integer number (2527991526165).

Almost surely, 220031323331032 is an apocalyptic number.

It is an amenable number.

20031323331032 is an abundant number, since it is smaller than the sum of its proper divisors (20416541087608).

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

20031323331032 is a wasteful number, since it uses less digits than its factorization.

20031323331032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192608878202 (or 192608878198 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 26.

Adding to 20031323331032 its reverse (23013332313002), we get a palindrome (43044655644034).

The spelling of 20031323331032 in words is "twenty trillion, thirty-one billion, three hundred twenty-three million, three hundred thirty-one thousand, thirty-two".

Divisors: 1 2 4 8 13 26 52 104 192608878183 385217756366 770435512732 1540871025464 2503915416379 5007830832758 10015661665516 20031323331032