Base | Representation |
---|---|
bin | 111100010100101… |
… | …011100110011111 |
3 | 2121112100200200110 |
4 | 330110223212133 |
5 | 4033041220211 |
6 | 244231501103 |
7 | 34036215003 |
oct | 7424534637 |
9 | 2545320613 |
10 | 1012054431 |
11 | 47a307523 |
12 | 242b27793 |
13 | 13189ab9b |
14 | 985a8703 |
15 | 5dcb2ea6 |
hex | 3c52b99f |
1012054431 has 8 divisors (see below), whose sum is σ = 1378116864. Its totient is φ = 660347480.
The previous prime is 1012054429. The next prime is 1012054453. The reversal of 1012054431 is 1344502101.
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 1012054431 - 21 = 1012054429 is a prime.
It is a super-2 number, since 2×10120544312 = 2048508342613467522, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 1012054398 and 1012054407.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1012054411) 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, 3588705 + ... + 3588986.
It is an arithmetic number, because the mean of its divisors is an integer number (172264608).
Almost surely, 21012054431 is an apocalyptic number.
1012054431 is a deficient number, since it is larger than the sum of its proper divisors (366062433).
1012054431 is an equidigital number, since it uses as much as digits as its factorization.
1012054431 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7177741.
The product of its (nonzero) digits is 480, while the sum is 21.
The square root of 1012054431 is about 31812.8029415831. The cubic root of 1012054431 is about 1004.0021054516.
Adding to 1012054431 its reverse (1344502101), we get a palindrome (2356556532).
The spelling of 1012054431 in words is "one billion, twelve million, fifty-four thousand, four hundred thirty-one".
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