Base | Representation |
---|---|
bin | 11100111001001011… |
… | …111110000111101101 |
3 | 2222002010112011221010 |
4 | 130321023332013231 |
5 | 1002014144213123 |
6 | 22130300255433 |
7 | 2145544303020 |
oct | 347113760755 |
9 | 88063464833 |
10 | 31024210413 |
11 | 121803a3519 |
12 | 6019b41579 |
13 | 2c0562ac71 |
14 | 17044991b7 |
15 | c189dd993 |
hex | 7392fe1ed |
31024210413 has 32 divisors (see below), whose sum is σ = 47460384000. Its totient is φ = 17658740736.
The previous prime is 31024210409. The next prime is 31024210423. The reversal of 31024210413 is 31401242013.
It is not a de Polignac number, because 31024210413 - 22 = 31024210409 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a self number, because there is not a number n which added to its sum of digits gives 31024210413.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31024210403) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6343273 + ... + 6348161.
It is an arithmetic number, because the mean of its divisors is an integer number (1483137000).
Almost surely, 231024210413 is an apocalyptic number.
It is an amenable number.
31024210413 is a deficient number, since it is larger than the sum of its proper divisors (16436173587).
31024210413 is a wasteful number, since it uses less digits than its factorization.
31024210413 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6021.
The product of its (nonzero) digits is 576, while the sum is 21.
Adding to 31024210413 its reverse (31401242013), we get a palindrome (62425452426).
The spelling of 31024210413 in words is "thirty-one billion, twenty-four million, two hundred ten thousand, four hundred thirteen".
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