Base | Representation |
---|---|
bin | 11101001010010111… |
… | …011010001000100010 |
3 | 2222211012211211002111 |
4 | 131022113122020202 |
5 | 1003111434441120 |
6 | 22215033505534 |
7 | 2155644122224 |
oct | 351227321042 |
9 | 88735754074 |
10 | 31312421410 |
11 | 12309055726 |
12 | 609a5722aa |
13 | 2c5025bb0a |
14 | 1730880414 |
15 | c33e6e75a |
hex | 74a5da222 |
31312421410 has 32 divisors (see below), whose sum is σ = 58216983552. Its totient is φ = 12113336640.
The previous prime is 31312421377. The next prime is 31312421411. The reversal of 31312421410 is 1412421313.
It is not an unprimeable number, because it can be changed into a prime (31312421411) 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, 476619 + ... + 538321.
It is an arithmetic number, because the mean of its divisors is an integer number (1819280736).
Almost surely, 231312421410 is an apocalyptic number.
31312421410 is a deficient number, since it is larger than the sum of its proper divisors (26904562142).
31312421410 is a wasteful number, since it uses less digits than its factorization.
31312421410 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 63378.
The product of its (nonzero) digits is 576, while the sum is 22.
Adding to 31312421410 its reverse (1412421313), we get a palindrome (32724842723).
The spelling of 31312421410 in words is "thirty-one billion, three hundred twelve million, four hundred twenty-one thousand, four hundred ten".
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