Base | Representation |
---|---|
bin | 10010100110100… |
… | …100100010010101 |
3 | 210202021101002210 |
4 | 102212210202111 |
5 | 1114344213023 |
6 | 50545224033 |
7 | 10506546330 |
oct | 2246444225 |
9 | 722241083 |
10 | 312101013 |
11 | 15019a124 |
12 | 88632019 |
13 | 4c876a73 |
14 | 2d643617 |
15 | 1c5ee593 |
hex | 129a4895 |
312101013 has 8 divisors (see below), whose sum is σ = 475582528. Its totient is φ = 178343424.
The previous prime is 312101003. The next prime is 312101029. The reversal of 312101013 is 310101213.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 312101013 - 28 = 312100757 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 312101013.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (312101003) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7430956 + ... + 7430997.
It is an arithmetic number, because the mean of its divisors is an integer number (59447816).
Almost surely, 2312101013 is an apocalyptic number.
It is an amenable number.
312101013 is a deficient number, since it is larger than the sum of its proper divisors (163481515).
312101013 is a wasteful number, since it uses less digits than its factorization.
312101013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14861963.
The product of its (nonzero) digits is 18, while the sum is 12.
The square root of 312101013 is about 17666.3808687575. The cubic root of 312101013 is about 678.3154765258.
Adding to 312101013 its reverse (310101213), we get a palindrome (622202226).
It can be divided in two parts, 31210 and 1013, that added together give a palindrome (32223).
The spelling of 312101013 in words is "three hundred twelve million, one hundred one thousand, thirteen".
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