Base | Representation |
---|---|
bin | 1101010011011001… |
… | …11101110000111101 |
3 | 200102202010111000000 |
4 | 12221230331300331 |
5 | 104111334313000 |
6 | 3140412024513 |
7 | 341662612002 |
oct | 65154756075 |
9 | 20382114000 |
10 | 7142104125 |
11 | 30355935a2 |
12 | 1473a62139 |
13 | 89a89bc20 |
14 | 4ba78b8a9 |
15 | 2bc039000 |
hex | 1a9b3dc3d |
7142104125 has 112 divisors (see below), whose sum is σ = 14394285360. Its totient is φ = 3515529600.
The previous prime is 7142104097. The next prime is 7142104127. The reversal of 7142104125 is 5214012417.
It can be written as a sum of positive squares in 8 ways, for example, as 1870908516 + 5271195609 = 43254^2 + 72603^2 .
It is not a de Polignac number, because 7142104125 - 29 = 7142103613 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7142104127) by changing a digit.
It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 1181611 + ... + 1187639.
It is an arithmetic number, because the mean of its divisors is an integer number (128520405).
Almost surely, 27142104125 is an apocalyptic number.
7142104125 is a gapful number since it is divisible by the number (75) formed by its first and last digit.
It is an amenable number.
7142104125 is an abundant number, since it is smaller than the sum of its proper divisors (7252181235).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7142104125 is an equidigital number, since it uses as much as digits as its factorization.
7142104125 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6075 (or 6050 counting only the distinct ones).
The product of its (nonzero) digits is 2240, while the sum is 27.
The square root of 7142104125 is about 84510.9704417125. The cubic root of 7142104125 is about 1925.7891069635.
The spelling of 7142104125 in words is "seven billion, one hundred forty-two million, one hundred four thousand, one hundred twenty-five".
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