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8423142079 = 11765740189
BaseRepresentation
bin1111101100000111…
…01111001010111111
3210202000121221201011
413312003233022333
5114222311021304
63511453100051
7415506345352
oct76603571277
923660557634
108423142079
11363270a350
121770a87627
13a430c8051
1459c974299
15344730c04
hex1f60ef2bf

8423142079 has 4 divisors (see below), whose sum is σ = 9188882280. Its totient is φ = 7657401880.

The previous prime is 8423142071. The next prime is 8423142089. The reversal of 8423142079 is 9702413248.

8423142079 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.

It is a cyclic number.

It is not a de Polignac number, because 8423142079 - 23 = 8423142071 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 (8423142071) 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, 382870084 + ... + 382870105.

It is an arithmetic number, because the mean of its divisors is an integer number (2297220570).

Almost surely, 28423142079 is an apocalyptic number.

8423142079 is a deficient number, since it is larger than the sum of its proper divisors (765740201).

8423142079 is a wasteful number, since it uses less digits than its factorization.

8423142079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765740200.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 8423142079 is about 91777.6774548147. The cubic root of 8423142079 is about 2034.6577895909.

The spelling of 8423142079 in words is "eight billion, four hundred twenty-three million, one hundred forty-two thousand, seventy-nine".

Divisors: 1 11 765740189 8423142079