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7102081 = 73792677
BaseRepresentation
bin11011000101111010000001
3111100211020001
4123011322001
53304231311
6412120001
7114236530
oct33057201
914324201
107102081
114010998
122466001
13161881c
14d2c317
159544c1
hex6c5e81

7102081 has 8 divisors (see below), whose sum is σ = 8141120. Its totient is φ = 6069168.

The previous prime is 7102079. The next prime is 7102091. The reversal of 7102081 is 1802017.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7102081 - 21 = 7102079 is a prime.

It is a super-2 number, since 2×71020812 = 100879109061122, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7102001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1315 + ... + 3991.

It is an arithmetic number, because the mean of its divisors is an integer number (1017640).

Almost surely, 27102081 is an apocalyptic number.

It is an amenable number.

7102081 is a deficient number, since it is larger than the sum of its proper divisors (1039039).

7102081 is a wasteful number, since it uses less digits than its factorization.

7102081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3063.

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 7102081 is about 2664.9729829775. The cubic root of 7102081 is about 192.2185102670.

Adding to 7102081 its reverse (1802017), we get a palindrome (8904098).

The spelling of 7102081 in words is "seven million, one hundred two thousand, eighty-one".

Divisors: 1 7 379 2653 2677 18739 1014583 7102081