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7681113 = 321177587
BaseRepresentation
bin11101010011010001011001
3112110020111200
4131103101121
53431243423
6432344413
7122200626
oct35232131
915406450
107681113
114376a30
1226a5109
13178c24b
14103d34d
15a1ad43
hex753459

7681113 has 12 divisors (see below), whose sum is σ = 12103728. Its totient is φ = 4655160.

The previous prime is 7681109. The next prime is 7681123. The reversal of 7681113 is 3111867.

It is not a de Polignac number, because 7681113 - 22 = 7681109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7681123) 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, 38695 + ... + 38892.

It is an arithmetic number, because the mean of its divisors is an integer number (1008644).

Almost surely, 27681113 is an apocalyptic number.

It is an amenable number.

7681113 is a deficient number, since it is larger than the sum of its proper divisors (4422615).

7681113 is a wasteful number, since it uses less digits than its factorization.

7681113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77604 (or 77601 counting only the distinct ones).

The product of its digits is 1008, while the sum is 27.

The square root of 7681113 is about 2771.4820944758. The cubic root of 7681113 is about 197.3064963681.

It can be divided in two parts, 768 and 1113, that added together give a palindrome (1881).

The spelling of 7681113 in words is "seven million, six hundred eighty-one thousand, one hundred thirteen".

Divisors: 1 3 9 11 33 99 77587 232761 698283 853457 2560371 7681113