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7982081 = 23279191
BaseRepresentation
bin11110011100110000000001
3120000112100122
4132130300001
54020411311
6443030025
7124563242
oct36346001
916015318
107982081
114562068
12280b315
131866233
1410bacc9
15a7a0db
hex79cc01

7982081 has 12 divisors (see below), whose sum is σ = 8494080. Its totient is φ = 7498920.

The previous prime is 7982063. The next prime is 7982083. The reversal of 7982081 is 1802897.

It is a happy number.

It is not a de Polignac number, because 7982081 - 26 = 7982017 is a prime.

It is a super-2 number, since 2×79820812 = 127427234181122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7982083) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41696 + ... + 41886.

It is an arithmetic number, because the mean of its divisors is an integer number (707840).

Almost surely, 27982081 is an apocalyptic number.

It is an amenable number.

7982081 is a deficient number, since it is larger than the sum of its proper divisors (511999).

7982081 is a wasteful number, since it uses less digits than its factorization.

7982081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316 (or 293 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 7982081 is about 2825.2576873623. The cubic root of 7982081 is about 199.8505633713.

The spelling of 7982081 in words is "seven million, nine hundred eighty-two thousand, eighty-one".

Divisors: 1 23 79 191 529 1817 4393 15089 41791 101039 347047 7982081