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8102916893 = 63499127607
BaseRepresentation
bin1111000101111100…
…01011001100011101
3202220201001211100002
413202332023030131
5113043321320033
63420013344045
7404540441261
oct74276131435
922821054302
108102916893
113488981435
1216a1798025
139c19684a6
1456c2180a1
153265793e8
hex1e2f8b31d

8102916893 has 4 divisors (see below), whose sum is σ = 8103108000. Its totient is φ = 8102725788.

The previous prime is 8102916847. The next prime is 8102916911. The reversal of 8102916893 is 3986192018.

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 8102916893 - 28 = 8102916637 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 (8102913893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305 + ... + 127302.

It is an arithmetic number, because the mean of its divisors is an integer number (2025777000).

Almost surely, 28102916893 is an apocalyptic number.

It is an amenable number.

8102916893 is a deficient number, since it is larger than the sum of its proper divisors (191107).

8102916893 is a wasteful number, since it uses less digits than its factorization.

8102916893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191106.

The product of its (nonzero) digits is 186624, while the sum is 47.

The square root of 8102916893 is about 90016.2035024806. The cubic root of 8102916893 is about 2008.5398909800.

The spelling of 8102916893 in words is "eight billion, one hundred two million, nine hundred sixteen thousand, eight hundred ninety-three".

Divisors: 1 63499 127607 8102916893