Base | Representation |
---|---|
bin | 111111001111101… |
… | …0100101100001111 |
3 | 12110220011220101202 |
4 | 1332133110230033 |
5 | 13321231443211 |
6 | 550324500115 |
7 | 103405616225 |
oct | 17637245417 |
9 | 5426156352 |
10 | 2122140431 |
11 | 999990574 |
12 | 4b284a63b |
13 | 27a8705c8 |
14 | 161bb0b15 |
15 | c648c53b |
hex | 7e7d4b0f |
2122140431 has 8 divisors (see below), whose sum is σ = 2148854400. Its totient is φ = 2095453912.
The previous prime is 2122140389. The next prime is 2122140463. The reversal of 2122140431 is 1340412212.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 2122140431 - 214 = 2122124047 is a prime.
It is a super-2 number, since 2×21221404312 = 9006960017769731522, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2122143431) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180470 + ... + 191868.
It is an arithmetic number, because the mean of its divisors is an integer number (268606800).
Almost surely, 22122140431 is an apocalyptic number.
2122140431 is a deficient number, since it is larger than the sum of its proper divisors (26713969).
2122140431 is a wasteful number, since it uses less digits than its factorization.
2122140431 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13725.
The product of its (nonzero) digits is 384, while the sum is 20.
The square root of 2122140431 is about 46066.6954642939. The cubic root of 2122140431 is about 1285.0638496235.
Adding to 2122140431 its reverse (1340412212), we get a palindrome (3462552643).
The spelling of 2122140431 in words is "two billion, one hundred twenty-two million, one hundred forty thousand, four hundred thirty-one".
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