| Base | Representation |
|---|---|
| bin | 1110111100111001… |
| … | …1101011111100000 |
| 3 | 101100201012020022010 |
| 4 | 3233032131133200 |
| 5 | 31204431423230 |
| 6 | 1502132112520 |
| 7 | 201313400442 |
| oct | 35716353740 |
| 9 | 11321166263 |
| 10 | 4013545440 |
| 11 | 177a5a6103 |
| 12 | 940165740 |
| 13 | 4bc684c78 |
| 14 | 2a107c492 |
| 15 | 18754d9b0 |
| hex | ef39d7e0 |
4013545440 has 96 divisors (see below), whose sum is σ = 12742410240. Its totient is φ = 1061835264.
The previous prime is 4013545433. The next prime is 4013545463. The reversal of 4013545440 is 445453104.
It is a tau number, because it is divible by the number of its divisors (96).
It is a super-2 number, since 2×40135454402 = 32217093997889587200, which contains 22 as substring.
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 = 4013545398 and 4013545407.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28041 + ... + 93879.
It is an arithmetic number, because the mean of its divisors is an integer number (132733440).
Almost surely, 24013545440 is an apocalyptic number.
4013545440 is a gapful number since it is divisible by the number (40) 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 4013545440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6371205120).
4013545440 is an abundant number, since it is smaller than the sum of its proper divisors (8728864800).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
4013545440 is a wasteful number, since it uses less digits than its factorization.
4013545440 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 65984 (or 65976 counting only the distinct ones).
The product of its (nonzero) digits is 19200, while the sum is 30.
The square root of 4013545440 is about 63352.5488042904. The cubic root of 4013545440 is about 1589.1908703050.
Adding to 4013545440 its reverse (445453104), we get a palindrome (4458998544).
The spelling of 4013545440 in words is "four billion, thirteen million, five hundred forty-five thousand, four hundred forty".
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