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8102077 = 17945263
BaseRepresentation
bin11110111010000010111101
3120020121221221
4132322002331
54033231302
6445353341
7125603134
oct36720275
916217857
108102077
114634235
122868851
1318a8a39
14110c91b
15aa0937
hex7ba0bd

8102077 has 4 divisors (see below), whose sum is σ = 8147520. Its totient is φ = 8056636.

The previous prime is 8102063. The next prime is 8102089. The reversal of 8102077 is 7702018.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7702018 = 23851009.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-8102077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8102177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22453 + ... + 22810.

It is an arithmetic number, because the mean of its divisors is an integer number (2036880).

Almost surely, 28102077 is an apocalyptic number.

It is an amenable number.

8102077 is a deficient number, since it is larger than the sum of its proper divisors (45443).

8102077 is a wasteful number, since it uses less digits than its factorization.

8102077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45442.

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 8102077 is about 2846.4147624687. The cubic root of 8102077 is about 200.8470491408.

The spelling of 8102077 in words is "eight million, one hundred two thousand, seventy-seven".

Divisors: 1 179 45263 8102077