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31303146241 = 3110118475413
BaseRepresentation
bin11101001001110100…
…000001101100000001
32222210120101120221201
4131021310001230001
51003102101134431
622214103021201
72155502232013
oct351164015401
988716346851
1031303146241
11123038a00a4
12609743a801
132c4b362153
14172d5481b3
15c3323b461
hex749d01b01

31303146241 has 16 divisors (see below), whose sum is σ = 32656555008. Its totient is φ = 29971656000.

The previous prime is 31303146233. The next prime is 31303146269. The reversal of 31303146241 is 14264130313.

It is a cyclic number.

It is not a de Polignac number, because 31303146241 - 23 = 31303146233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31303176241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5780251 + ... + 5785663.

It is an arithmetic number, because the mean of its divisors is an integer number (2041034688).

Almost surely, 231303146241 is an apocalyptic number.

31303146241 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

31303146241 is a deficient number, since it is larger than the sum of its proper divisors (1353408767).

31303146241 is a wasteful number, since it uses less digits than its factorization.

31303146241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7392.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 31303146241 its reverse (14264130313), we get a palindrome (45567276554).

The spelling of 31303146241 in words is "thirty-one billion, three hundred three million, one hundred forty-six thousand, two hundred forty-one".

Divisors: 1 31 101 1847 3131 5413 57257 167803 186547 546713 5782957 9997811 16948103 309932141 1009778911 31303146241