Base | Representation |
---|---|
bin | 1110100100101… |
… | …01110001011111 |
3 | 22112000212010100 |
4 | 13102111301133 |
5 | 222243421122 |
6 | 20044112143 |
7 | 3013044000 |
oct | 722256137 |
9 | 275025110 |
10 | 122248287 |
11 | 63007a47 |
12 | 34b35653 |
13 | 1c433385 |
14 | 123431a7 |
15 | aaebaac |
hex | 7495c5f |
122248287 has 36 divisors (see below), whose sum is σ = 206965200. Its totient is φ = 69505128.
The previous prime is 122248277. The next prime is 122248303. The reversal of 122248287 is 782842221.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It is not a de Polignac number, because 122248287 - 28 = 122248031 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (122248277) by changing a digit.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 614214 + ... + 614412.
Almost surely, 2122248287 is an apocalyptic number.
122248287 is a deficient number, since it is larger than the sum of its proper divisors (84716913).
122248287 is an frugal number, since it uses more digits than its factorization.
122248287 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 425 (or 209 counting only the distinct ones).
The product of its digits is 28672, while the sum is 36.
The square root of 122248287 is about 11056.5947289389. The cubic root of 122248287 is about 496.3037927674.
Multiplying 122248287 by its product of digits (28672), we get a square (3505102884864 = 18721922).
The spelling of 122248287 in words is "one hundred twenty-two million, two hundred forty-eight thousand, two hundred eighty-seven".
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