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8102993 = 36722079
BaseRepresentation
bin11110111010010001010001
3120020200012212
4132322101101
54033243433
6445401505
7125605613
oct36722121
916220185
108102993
114634998
122869295
1318a9292
14110cdb3
15aa0d48
hex7ba451

8102993 has 4 divisors (see below), whose sum is σ = 8125440. Its totient is φ = 8080548.

The previous prime is 8102971. The next prime is 8103019. The reversal of 8102993 is 3992018.

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.

It is a cyclic number.

It is not a de Polignac number, because 8102993 - 26 = 8102929 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 (8102903) 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, 10673 + ... + 11406.

It is an arithmetic number, because the mean of its divisors is an integer number (2031360).

Almost surely, 28102993 is an apocalyptic number.

It is an amenable number.

8102993 is a deficient number, since it is larger than the sum of its proper divisors (22447).

8102993 is a wasteful number, since it uses less digits than its factorization.

8102993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22446.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 8102993 is about 2846.5756620895. The cubic root of 8102993 is about 200.8546179393.

The spelling of 8102993 in words is "eight million, one hundred two thousand, nine hundred ninety-three".

Divisors: 1 367 22079 8102993