Search a number
-
+
31350281107 is a prime number
BaseRepresentation
bin11101001100100111…
…110101001110010011
32222220212002021211111
4131030213311032103
51003201132443412
622222505154151
72156613664315
oct351447651623
988825067744
1031350281107
1112328464232
1260ab18b957
132c580563c2
1417358d77b5
15c3744c2a7
hex74c9f5393

31350281107 has 2 divisors, whose sum is σ = 31350281108. Its totient is φ = 31350281106.

The previous prime is 31350281101. The next prime is 31350281129. The reversal of 31350281107 is 70118205313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31350281107 - 227 = 31216063379 is a prime.

It is a super-2 number, since 2×313502811072 (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31350281101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15675140553 + 15675140554.

It is an arithmetic number, because the mean of its divisors is an integer number (15675140554).

Almost surely, 231350281107 is an apocalyptic number.

31350281107 is a deficient number, since it is larger than the sum of its proper divisors (1).

31350281107 is an equidigital number, since it uses as much as digits as its factorization.

31350281107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 31.

The spelling of 31350281107 in words is "thirty-one billion, three hundred fifty million, two hundred eighty-one thousand, one hundred seven".