| Base | Representation |
|---|---|
| bin | 101001101111101… |
| … | …1100011011100000 |
| 3 | 10121121202120021210 |
| 4 | 1103133130123200 |
| 5 | 10332043024330 |
| 6 | 350554550120 |
| 7 | 46466123415 |
| oct | 12337343340 |
| 9 | 3547676253 |
| 10 | 1400751840 |
| 11 | 659762654 |
| 12 | 331138340 |
| 13 | 194282a57 |
| 14 | d406a10c |
| 15 | 82e928b0 |
| hex | 537dc6e0 |
1400751840 has 96 divisors (see below), whose sum is σ = 4495702176. Its totient is φ = 366479360.
The previous prime is 1400751827. The next prime is 1400751841. The reversal of 1400751840 is 481570041.
It is a tau number, because it is divible by the number of its divisors (96).
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a junction number, because it is equal to n+sod(n) for n = 1400751798 and 1400751807.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1400751841) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2091 + ... + 52970.
It is an arithmetic number, because the mean of its divisors is an integer number (46830231).
Almost surely, 21400751840 is an apocalyptic number.
1400751840 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 1400751840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2247851088).
1400751840 is an abundant number, since it is smaller than the sum of its proper divisors (3094950336).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1400751840 is a wasteful number, since it uses less digits than its factorization.
1400751840 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 55132 (or 55124 counting only the distinct ones).
The product of its (nonzero) digits is 4480, while the sum is 30.
The square root of 1400751840 is about 37426.6194038414. The cubic root of 1400751840 is about 1118.8891622192.
The spelling of 1400751840 in words is "one billion, four hundred million, seven hundred fifty-one thousand, eight hundred forty".
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