Base | Representation |
---|---|
bin | 111001111100101… |
… | …100111100001111 |
3 | 2111202101120221002 |
4 | 321330230330033 |
5 | 3442341322111 |
6 | 240245530515 |
7 | 33043453145 |
oct | 7174547417 |
9 | 2452346832 |
10 | 972214031 |
11 | 459875878 |
12 | 231713a3b |
13 | 12655bb99 |
14 | 93197595 |
15 | 5a54363b |
hex | 39f2cf0f |
972214031 has 4 divisors (see below), whose sum is σ = 974341872. Its totient is φ = 970086192.
The previous prime is 972214007. The next prime is 972214043. The reversal of 972214031 is 130412279.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 972214031 - 26 = 972213967 is a prime.
It is a super-2 number, since 2×9722140312 = 1890400244146537922, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 972213985 and 972214003.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (972214081) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1063235 + ... + 1064148.
It is an arithmetic number, because the mean of its divisors is an integer number (243585468).
Almost surely, 2972214031 is an apocalyptic number.
972214031 is a deficient number, since it is larger than the sum of its proper divisors (2127841).
972214031 is a wasteful number, since it uses less digits than its factorization.
972214031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2127840.
The product of its (nonzero) digits is 3024, while the sum is 29.
The square root of 972214031 is about 31180.3468710661. The cubic root of 972214031 is about 990.6508766154.
The spelling of 972214031 in words is "nine hundred seventy-two million, two hundred fourteen thousand, thirty-one".
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