| Base | Representation |
|---|---|
| bin | 10000101111010… |
| … | …01011010000000 |
| 3 | 100210012220102022 |
| 4 | 20113221122000 |
| 5 | 241421313030 |
| 6 | 21533341012 |
| 7 | 3323343650 |
| oct | 1027513200 |
| 9 | 323186368 |
| 10 | 140416640 |
| 11 | 72297111 |
| 12 | 3b037768 |
| 13 | 23124b90 |
| 14 | 14912360 |
| 15 | c4d9de5 |
| hex | 85e9680 |
140416640 has 128 divisors (see below), whose sum is σ = 413320320. Its totient is φ = 44421120.
The previous prime is 140416621. The next prime is 140416649. The reversal of 140416640 is 46614041.
It is a tau number, because it is divible by the number of its divisors (128).
It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (26).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (140416649) 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 15 ways as a sum of consecutive naturals, for example, 57035 + ... + 59445.
It is an arithmetic number, because the mean of its divisors is an integer number (3229065).
Almost surely, 2140416640 is an apocalyptic number.
140416640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 140416640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206660160).
140416640 is an abundant number, since it is smaller than the sum of its proper divisors (272903680).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
140416640 is a wasteful number, since it uses less digits than its factorization.
140416640 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2450 (or 2438 counting only the distinct ones).
The product of its (nonzero) digits is 2304, while the sum is 26.
The square root of 140416640 is about 11849.7527400364. The cubic root of 140416640 is about 519.7639954685.
The spelling of 140416640 in words is "one hundred forty million, four hundred sixteen thousand, six hundred forty".
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