Base | Representation |
---|---|
bin | 101010010100100… |
… | …0100001001010111 |
3 | 10122222002001210122 |
4 | 1110221010021113 |
5 | 10402013113111 |
6 | 352524342155 |
7 | 50122143320 |
oct | 12451041127 |
9 | 3588061718 |
10 | 1420051031 |
11 | 6696443a3 |
12 | 3376a495b |
13 | 19827c1a9 |
14 | d6851447 |
15 | 84a05cdb |
hex | 54a44257 |
1420051031 has 16 divisors (see below), whose sum is σ = 1666260288. Its totient is φ = 1184812800.
The previous prime is 1420050967. The next prime is 1420051037. The reversal of 1420051031 is 1301500241.
It is a cyclic number.
It is not a de Polignac number, because 1420051031 - 26 = 1420050967 is a prime.
It is a super-2 number, since 2×14200510312 = 4033089861288325922, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1420051037) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126941 + ... + 137673.
It is an arithmetic number, because the mean of its divisors is an integer number (104141268).
Almost surely, 21420051031 is an apocalyptic number.
1420051031 is a deficient number, since it is larger than the sum of its proper divisors (246209257).
1420051031 is a wasteful number, since it uses less digits than its factorization.
1420051031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11242.
The product of its (nonzero) digits is 120, while the sum is 17.
The square root of 1420051031 is about 37683.5644678154. The cubic root of 1420051031 is about 1124.0043288609.
Adding to 1420051031 its reverse (1301500241), we get a palindrome (2721551272).
The spelling of 1420051031 in words is "one billion, four hundred twenty million, fifty-one thousand, thirty-one".
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