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7982428 = 221995607
BaseRepresentation
bin11110011100110101011100
3120000112211111
4132130311130
54020414203
6443031404
7124564246
oct36346534
916015744
107982428
114562353
12280b564
13186643c
1410bb096
15a7a26d
hex79cd5c

7982428 has 6 divisors (see below), whose sum is σ = 13969256. Its totient is φ = 3991212.

The previous prime is 7982423. The next prime is 7982461. The reversal of 7982428 is 8242897.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7982423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 997800 + ... + 997807.

Almost surely, 27982428 is an apocalyptic number.

It is an amenable number.

7982428 is a deficient number, since it is larger than the sum of its proper divisors (5986828).

7982428 is a wasteful number, since it uses less digits than its factorization.

7982428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1995611 (or 1995609 counting only the distinct ones).

The product of its digits is 64512, while the sum is 40.

The square root of 7982428 is about 2825.3190970225. The cubic root of 7982428 is about 199.8534593220.

The spelling of 7982428 in words is "seven million, nine hundred eighty-two thousand, four hundred twenty-eight".

Divisors: 1 2 4 1995607 3991214 7982428