Base | Representation |
---|---|
bin | 1001000101100010010… |
… | …11111100110010111001 |
3 | 1002211212110211211101111 |
4 | 10202301023330302321 |
5 | 20103401322021040 |
6 | 355232155120321 |
7 | 31361602101256 |
oct | 4426113746271 |
9 | 1084773754344 |
10 | 312210345145 |
11 | 110453667336 |
12 | 506127430a1 |
13 | 235977303ca |
14 | 1117aa7642d |
15 | 81c462ddea |
hex | 48b12fccb9 |
312210345145 has 8 divisors (see below), whose sum is σ = 375020087040. Its totient is φ = 249523160880.
The previous prime is 312210345131. The next prime is 312210345163. The reversal of 312210345145 is 541543012213.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 312210345145 - 221 = 312208247993 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30633801 + ... + 30643990.
It is an arithmetic number, because the mean of its divisors is an integer number (46877510880).
Almost surely, 2312210345145 is an apocalyptic number.
It is an amenable number.
312210345145 is a deficient number, since it is larger than the sum of its proper divisors (62809741895).
312210345145 is a wasteful number, since it uses less digits than its factorization.
312210345145 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 61278815.
The product of its (nonzero) digits is 14400, while the sum is 31.
Adding to 312210345145 its reverse (541543012213), we get a palindrome (853753357358).
The spelling of 312210345145 in words is "three hundred twelve billion, two hundred ten million, three hundred forty-five thousand, one hundred forty-five".
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