Base | Representation |
---|---|
bin | 1110110000011001… |
… | …0101111010111001 |
3 | 101020001110222222000 |
4 | 3230012111322321 |
5 | 31103014220000 |
6 | 1453015451213 |
7 | 200105446410 |
oct | 35406257271 |
9 | 11201428860 |
10 | 3961085625 |
11 | 1752a25292 |
12 | 926686b09 |
13 | 4b1848063 |
14 | 298104477 |
15 | 182b3a000 |
hex | ec195eb9 |
3961085625 has 80 divisors (see below), whose sum is σ = 8380817280. Its totient is φ = 1810728000.
The previous prime is 3961085621. The next prime is 3961085651. The reversal of 3961085625 is 5265801693.
3961085625 is a `hidden beast` number, since 3 + 9 + 6 + 10 + 8 + 5 + 625 = 666.
It is not a de Polignac number, because 3961085625 - 22 = 3961085621 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (45).
Together with 4419731655 it forms an amicable pair .
It is not an unprimeable number, because it can be changed into a prime (3961085621) by changing a digit.
It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 101359 + ... + 134891.
It is an arithmetic number, because the mean of its divisors is an integer number (104760216).
Almost surely, 23961085625 is an apocalyptic number.
3961085625 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
It is an amenable number.
3961085625 is an abundant number, since it is smaller than the sum of its proper divisors (4419731655).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
3961085625 is an equidigital number, since it uses as much as digits as its factorization.
3961085625 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 33569 (or 33548 counting only the distinct ones).
The product of its (nonzero) digits is 388800, while the sum is 45.
The square root of 3961085625 is about 62937.1561559624. The cubic root of 3961085625 is about 1582.2365411235.
The spelling of 3961085625 in words is "three billion, nine hundred sixty-one million, eighty-five thousand, six hundred twenty-five".
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