Base | Representation |
---|---|
bin | 1101010011110110… |
… | …10101011000111011 |
3 | 200110000012212001110 |
4 | 12221323111120323 |
5 | 104113320332112 |
6 | 3141024451403 |
7 | 342036620610 |
oct | 65173253073 |
9 | 20400185043 |
10 | 7145870907 |
11 | 303772663a |
12 | 1475179b63 |
13 | 89b5ba5a6 |
14 | 4bb08c507 |
15 | 2bc53013c |
hex | 1a9ed563b |
7145870907 has 8 divisors (see below), whose sum is σ = 10888946176. Its totient is φ = 4083354792.
The previous prime is 7145870887. The next prime is 7145870971. The reversal of 7145870907 is 7090785417.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 7145870907 - 27 = 7145870779 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (7145870107) 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, 170139763 + ... + 170139804.
It is an arithmetic number, because the mean of its divisors is an integer number (1361118272).
Almost surely, 27145870907 is an apocalyptic number.
7145870907 is a deficient number, since it is larger than the sum of its proper divisors (3743075269).
7145870907 is a wasteful number, since it uses less digits than its factorization.
7145870907 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 340279577.
The product of its (nonzero) digits is 493920, while the sum is 48.
The square root of 7145870907 is about 84533.2532616603. The cubic root of 7145870907 is about 1926.1276044483.
The spelling of 7145870907 in words is "seven billion, one hundred forty-five million, eight hundred seventy thousand, nine hundred seven".
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