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8394402101 = 43119476571
BaseRepresentation
bin1111101000101100…
…00110100100110101
3210200000112210212112
413310112012210311
5114142431331401
63504545100405
7415010145341
oct76426064465
923600483775
108394402101
11361846a5a8
121763327705
13a3a174747
14598c12621
15341e553bb
hex1f4586935

8394402101 has 4 divisors (see below), whose sum is σ = 8413879104. Its totient is φ = 8374925100.

The previous prime is 8394402091. The next prime is 8394402109. The reversal of 8394402101 is 1012044938.

It is a happy number.

8394402101 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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: 1012044938 = 2506022469.

It is a cyclic number.

It is not a de Polignac number, because 8394402101 - 222 = 8390207797 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 (8394402109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9737855 + ... + 9738716.

It is an arithmetic number, because the mean of its divisors is an integer number (2103469776).

Almost surely, 28394402101 is an apocalyptic number.

It is an amenable number.

8394402101 is a deficient number, since it is larger than the sum of its proper divisors (19477003).

8394402101 is a wasteful number, since it uses less digits than its factorization.

8394402101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19477002.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 8394402101 is about 91620.9697667515. The cubic root of 8394402101 is about 2032.3410510490.

The spelling of 8394402101 in words is "eight billion, three hundred ninety-four million, four hundred two thousand, one hundred one".

Divisors: 1 431 19476571 8394402101