| Base | Representation |
|---|---|
| bin | 101001101111010… |
| … | …0000000001010000 |
| 3 | 10121121021222212100 |
| 4 | 1103132200001100 |
| 5 | 10332012120100 |
| 6 | 350545400400 |
| 7 | 46464043131 |
| oct | 12336400120 |
| 9 | 3547258770 |
| 10 | 1400504400 |
| 11 | 659603759 |
| 12 | 331039100 |
| 13 | 1941c7239 |
| 14 | d4003c88 |
| 15 | 82e44400 |
| hex | 537a0050 |
1400504400 has 90 divisors (see below), whose sum is σ = 4860151790. Its totient is φ = 373466880.
The previous prime is 1400504393. The next prime is 1400504407. The reversal of 1400504400 is 44050041.
It is an interprime number because it is at equal distance from previous prime (1400504393) and next prime (1400504407).
It can be written as a sum of positive squares in 3 ways, for example, as 440496144 + 960008256 = 20988^2 + 30984^2 .
It is a tau number, because it is divible by the number of its divisors (90).
It is a super-2 number, since 2×14005044002 = 3922825148838720000, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1400504407) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 190915 + ... + 198114.
Almost surely, 21400504400 is an apocalyptic number.
1400504400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1400504400 is an abundant number, since it is smaller than the sum of its proper divisors (3459647390).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1400504400 is a wasteful number, since it uses less digits than its factorization.
1400504400 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 389053 (or 389039 counting only the distinct ones).
The product of its (nonzero) digits is 320, while the sum is 18.
The square root of 1400504400 is about 37423.3135892588. The cubic root of 1400504400 is about 1118.8232751648.
Adding to 1400504400 its reverse (44050041), we get a palindrome (1444554441).
The spelling of 1400504400 in words is "one billion, four hundred million, five hundred four thousand, four hundred".
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