Base | Representation |
---|---|
bin | 11101000011001110… |
… | …110000000011101111 |
3 | 2222111212120220211200 |
4 | 131003032300003233 |
5 | 1002340313231112 |
6 | 22155120020543 |
7 | 2152661446404 |
oct | 350316600357 |
9 | 88455526750 |
10 | 31192711407 |
11 | 12257521840 |
12 | 6066461753 |
13 | 2c31506bb0 |
14 | 171c9dc2ab |
15 | c286c4cdc |
hex | 7433b00ef |
31192711407 has 96 divisors (see below), whose sum is σ = 57517824000. Its totient is φ = 15998342400.
The previous prime is 31192711379. The next prime is 31192711423. The reversal of 31192711407 is 70411729113.
It is not a de Polignac number, because 31192711407 - 215 = 31192678639 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31192711447) by changing a digit.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 737469 + ... + 778617.
It is an arithmetic number, because the mean of its divisors is an integer number (599144000).
Almost surely, 231192711407 is an apocalyptic number.
31192711407 is a deficient number, since it is larger than the sum of its proper divisors (26325112593).
31192711407 is a wasteful number, since it uses less digits than its factorization.
31192711407 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 41229 (or 41226 counting only the distinct ones).
The product of its (nonzero) digits is 10584, while the sum is 36.
The spelling of 31192711407 in words is "thirty-one billion, one hundred ninety-two million, seven hundred eleven thousand, four hundred seven".
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