Base | Representation |
---|---|
bin | 1111001000101… |
… | …00101011001101 |
3 | 22211220100122102 |
4 | 13210110223031 |
5 | 230000244011 |
6 | 20333124445 |
7 | 3101106500 |
oct | 744245315 |
9 | 284810572 |
10 | 126962381 |
11 | 65737797 |
12 | 36629725 |
13 | 203c3c90 |
14 | 12c0d137 |
15 | b22d73b |
hex | 7914acd |
126962381 has 12 divisors (see below), whose sum is σ = 159052572. Its totient is φ = 100453248.
The previous prime is 126962357. The next prime is 126962419. The reversal of 126962381 is 183269621.
It is a happy number.
It can be written as a sum of positive squares in 2 ways, for example, as 51984100 + 74978281 = 7210^2 + 8659^2 .
It is not a de Polignac number, because 126962381 - 26 = 126962317 is a prime.
It is a super-2 number, since 2×1269623812 = 32238892378378322, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (126962321) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99020 + ... + 100293.
It is an arithmetic number, because the mean of its divisors is an integer number (13254381).
Almost surely, 2126962381 is an apocalyptic number.
It is an amenable number.
126962381 is a deficient number, since it is larger than the sum of its proper divisors (32090191).
126962381 is a wasteful number, since it uses less digits than its factorization.
126962381 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 199340 (or 199333 counting only the distinct ones).
The product of its digits is 31104, while the sum is 38.
The square root of 126962381 is about 11267.7584727398. The cubic root of 126962381 is about 502.6029339556.
The spelling of 126962381 in words is "one hundred twenty-six million, nine hundred sixty-two thousand, three hundred eighty-one".
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