Base | Representation |
---|---|
bin | 1110000110010111010101… |
… | …00011010010110111001000 |
3 | 11001210001100101112222010122 |
4 | 13003023222203102313020 |
5 | 13030441224310011433 |
6 | 145535300551202412 |
7 | 6350016012441434 |
oct | 703135243226710 |
9 | 131701311488118 |
10 | 31005009063368 |
11 | 997417235443a |
12 | 3588b8a976408 |
13 | 143b9b53baac2 |
14 | 792916b739c4 |
15 | 38b7a1187198 |
hex | 1c32ea8d2dc8 |
31005009063368 has 36 divisors (see below), whose sum is σ = 59017028439915. Its totient is φ = 15270604140528.
The previous prime is 31005009063361. The next prime is 31005009063407. The reversal of 31005009063368 is 86336090050013.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It can be written as a sum of positive squares in only one way, i.e., 15502504531684 + 15502504531684 = 3937322^2 + 3937322^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=3937322.
It is a super-2 number, since 2×310050090633682 (a number of 28 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (31005009063361) by changing a digit.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1055187605 + ... + 1055216987.
Almost surely, 231005009063368 is an apocalyptic number.
It is an amenable number.
31005009063368 is a deficient number, since it is larger than the sum of its proper divisors (28012019376547).
31005009063368 is an frugal number, since it uses more digits than its factorization.
31005009063368 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 58906 (or 29452 counting only the distinct ones).
The product of its (nonzero) digits is 349920, while the sum is 44.
The spelling of 31005009063368 in words is "thirty-one trillion, five billion, nine million, sixty-three thousand, three hundred sixty-eight".
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