Base | Representation |
---|---|
bin | 1101110010001001… |
… | …10000101010000011 |
3 | 201002201101221210221 |
4 | 12321010300222003 |
5 | 110123400001011 |
6 | 3222143403511 |
7 | 351243651256 |
oct | 67104605203 |
9 | 21081357727 |
10 | 7400000131 |
11 | 315811a697 |
12 | 15262b3597 |
13 | 90c147604 |
14 | 502b2109d |
15 | 2d49cc971 |
hex | 1b9130a83 |
7400000131 has 2 divisors, whose sum is σ = 7400000132. Its totient is φ = 7400000130.
The previous prime is 7400000123. The next prime is 7400000137. The reversal of 7400000131 is 1310000047.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 7400000131 - 23 = 7400000123 is a prime.
It is a super-2 number, since 2×74000001312 (a number of 21 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (7400000137) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3700000065 + 3700000066.
It is an arithmetic number, because the mean of its divisors is an integer number (3700000066).
Almost surely, 27400000131 is an apocalyptic number.
7400000131 is a deficient number, since it is larger than the sum of its proper divisors (1).
7400000131 is an equidigital number, since it uses as much as digits as its factorization.
7400000131 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 84, while the sum is 16.
The square root of 7400000131 is about 86023.2534318483. The cubic root of 7400000131 is about 1948.6951718737.
Subtracting from 7400000131 its product of nonzero digits (84), we obtain a palindrome (7400000047).
Adding to 7400000131 its reverse (1310000047), we get a palindrome (8710000178).
The spelling of 7400000131 in words is "seven billion, four hundred million, one hundred thirty-one", and thus it is an aban number.
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