| Base | Representation |
|---|---|
| bin | 1111011101100… |
| … | …1101000001100 |
| 3 | 11112000221201000 |
| 4 | 3313121220030 |
| 5 | 113100321130 |
| 6 | 10234020300 |
| 7 | 1415153202 |
| oct | 367315014 |
| 9 | 145027630 |
| 10 | 64854540 |
| 11 | 336771a3 |
| 12 | 19877690 |
| 13 | 1058978a |
| 14 | 8883072 |
| 15 | 5a61260 |
| hex | 3dd9a0c |
64854540 has 96 divisors (see below), whose sum is σ = 204341760. Its totient is φ = 17074368.
The previous prime is 64854533. The next prime is 64854547. The reversal of 64854540 is 4545846.
64854540 is a `hidden beast` number, since 64 + 8 + 54 + 540 = 666.
It is an interprime number because it is at equal distance from previous prime (64854533) and next prime (64854547).
It is a super-2 number, since 2×648545402 = 8412222717223200, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 64854495 and 64854504.
It is not an unprimeable number, because it can be changed into a prime (64854547) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44097 + ... + 45543.
It is an arithmetic number, because the mean of its divisors is an integer number (2128560).
Almost surely, 264854540 is an apocalyptic number.
64854540 is a gapful number since it is divisible by the number (60) 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 64854540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102170880).
64854540 is an abundant number, since it is smaller than the sum of its proper divisors (139487220).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
64854540 is a wasteful number, since it uses less digits than its factorization.
64854540 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1548 (or 1540 counting only the distinct ones).
The product of its (nonzero) digits is 76800, while the sum is 36.
The square root of 64854540 is about 8053.2316494684. The cubic root of 64854540 is about 401.7724263288.
It can be divided in two parts, 6485 and 4540, that added together give a square (11025 = 1052).
The spelling of 64854540 in words is "sixty-four million, eight hundred fifty-four thousand, five hundred forty".
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