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31330312200443 = 1311798713296419
BaseRepresentation
bin1110001111110101010000…
…01000010010000011111011
311002221011000022210112120202
413013322220020102003323
513101303434410403233
6150344540254312415
76412353225462044
oct707725010220373
9132834008715522
1031330312200443
119a8a124504073
1236200361b870b
1314635884ab869
147a457660b8cb
15394e8ee46be8
hex1c7ea82120fb

31330312200443 has 8 divisors (see below), whose sum is σ = 31571232390720. Its totient is φ = 31089418639240.

The previous prime is 31330312200431. The next prime is 31330312200497. The reversal of 31330312200443 is 34400221303313.

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

It is a cyclic number.

It is not a de Polignac number, because 31330312200443 - 224 = 31330295423227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31330312205443) 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, 4291913 + ... + 9004506.

It is an arithmetic number, because the mean of its divisors is an integer number (3946404048840).

Almost surely, 231330312200443 is an apocalyptic number.

31330312200443 is a deficient number, since it is larger than the sum of its proper divisors (240920190277).

31330312200443 is a wasteful number, since it uses less digits than its factorization.

31330312200443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13314537.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 31330312200443 its reverse (34400221303313), we get a palindrome (65730533503756).

The spelling of 31330312200443 in words is "thirty-one trillion, three hundred thirty billion, three hundred twelve million, two hundred thousand, four hundred forty-three".

Divisors: 1 131 17987 2356297 13296419 1741830889 239162688553 31330312200443