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7948425 = 352131809
BaseRepresentation
bin11110010100100010001001
3112221211012010
4132110202021
54013322200
6442210133
7124363152
oct36244211
915854163
107948425
114539851
1227b3949
131853b14
1410ac929
15a70150
hex794889

7948425 has 24 divisors (see below), whose sum is σ = 13258080. Its totient is φ = 4201600.

The previous prime is 7948393. The next prime is 7948429. The reversal of 7948425 is 5248497.

It is not a de Polignac number, because 7948425 - 25 = 7948393 is a prime.

It is a d-powerful number, because it can be written as 7 + 97 + 410 + 84 + 410 + 220 + 56 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7948429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9421 + ... + 10229.

It is an arithmetic number, because the mean of its divisors is an integer number (552420).

Almost surely, 27948425 is an apocalyptic number.

7948425 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7948425 is a deficient number, since it is larger than the sum of its proper divisors (5309655).

7948425 is a wasteful number, since it uses less digits than its factorization.

7948425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953 (or 948 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 7948425 is about 2819.2951246721. The cubic root of 7948425 is about 199.5692814067.

The spelling of 7948425 in words is "seven million, nine hundred forty-eight thousand, four hundred twenty-five".

Divisors: 1 3 5 15 25 75 131 393 655 809 1965 2427 3275 4045 9825 12135 20225 60675 105979 317937 529895 1589685 2649475 7948425