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6662530423 = 7019504323
BaseRepresentation
bin1100011010001111…
…00010010101110111
3122012022201121120001
412031013202111313
5102121101433143
63021041052131
7324050400643
oct61507422567
918168647501
106662530423
11290990879a
12135b327047
138224192c3
14472bd1c23
1528eda814d
hex18d1e2577

6662530423 has 4 divisors (see below), whose sum is σ = 6672035448. Its totient is φ = 6653025400.

The previous prime is 6662530411. The next prime is 6662530439. The reversal of 6662530423 is 3240352666.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3240352666 = 21620176333.

It is a cyclic number.

It is not a de Polignac number, because 6662530423 - 229 = 6125659511 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 (6662530453) 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, 4751461 + ... + 4752862.

It is an arithmetic number, because the mean of its divisors is an integer number (1668008862).

Almost surely, 26662530423 is an apocalyptic number.

6662530423 is a deficient number, since it is larger than the sum of its proper divisors (9505025).

6662530423 is an equidigital number, since it uses as much as digits as its factorization.

6662530423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9505024.

The product of its (nonzero) digits is 155520, while the sum is 37.

The square root of 6662530423 is about 81624.3249466726. The cubic root of 6662530423 is about 1881.6827418042.

The spelling of 6662530423 in words is "six billion, six hundred sixty-two million, five hundred thirty thousand, four hundred twenty-three".

Divisors: 1 701 9504323 6662530423