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423130679 = 1264733457
BaseRepresentation
bin11001001110000…
…111011000110111
31002111012021011122
4121032013120313
51331310140204
6105553054155
713325360066
oct3116073067
91074167148
10423130679
111a7934384
12b985735b
136987c9aa
14402a61dd
15272320be
hex19387637

423130679 has 4 divisors (see below), whose sum is σ = 423176784. Its totient is φ = 423084576.

The previous prime is 423130667. The next prime is 423130693. The reversal of 423130679 is 976031324.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 423130679 - 28 = 423130423 is a prime.

It is a super-2 number, since 2×4231306792 = 358079143022002082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423130639) 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, 4082 + ... + 29375.

It is an arithmetic number, because the mean of its divisors is an integer number (105794196).

Almost surely, 2423130679 is an apocalyptic number.

423130679 is a deficient number, since it is larger than the sum of its proper divisors (46105).

423130679 is a wasteful number, since it uses less digits than its factorization.

423130679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46104.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 423130679 is about 20570.1404710809. The cubic root of 423130679 is about 750.7433690340.

The spelling of 423130679 in words is "four hundred twenty-three million, one hundred thirty thousand, six hundred seventy-nine".

Divisors: 1 12647 33457 423130679