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31320333201001 = 132938222718089
BaseRepresentation
bin1110001111100010101010…
…10101011010111001101001
311002220012020212112211210211
413013301111111122321221
513101123020244413001
6150340210141541121
76411551024414155
oct707612525327151
9132805225484724
1031320333201001
119a85973633099
12361a1102747a1
131462657c65070
147a3cab194065
15394aa8d36351
hex1c7c5555ae69

31320333201001 has 8 divisors (see below), whose sum is σ = 33844707658440. Its totient is φ = 28812404180352.

The previous prime is 31320333200941. The next prime is 31320333201007. The reversal of 31320333201001 is 10010233302313.

It can be written as a sum of positive squares in 4 ways, for example, as 16031607594601 + 15288725606400 = 4003949^2 + 3910080^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31320333201001 - 217 = 31320333069929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31320333201007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4111355236 + ... + 4111362853.

It is an arithmetic number, because the mean of its divisors is an integer number (4230588457305).

Almost surely, 231320333201001 is an apocalyptic number.

It is an amenable number.

31320333201001 is a deficient number, since it is larger than the sum of its proper divisors (2524374457439).

31320333201001 is a wasteful number, since it uses less digits than its factorization.

31320333201001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8222718395.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 31320333201001 its reverse (10010233302313), we get a palindrome (41330566503314).

The spelling of 31320333201001 in words is "thirty-one trillion, three hundred twenty billion, three hundred thirty-three million, two hundred one thousand, one".

Divisors: 1 13 293 3809 8222718089 106895335157 2409256400077 31320333201001