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169429679 = 809209431
BaseRepresentation
bin10100001100101…
…00101010101111
3102210210220211022
422012110222233
5321333222204
624451244355
74125062036
oct1206245257
9383726738
10169429679
1187703031
12488a96bb
1329142863
141870571d
15ed1b5be
hexa194aaf

169429679 has 4 divisors (see below), whose sum is σ = 169639920. Its totient is φ = 169219440.

The previous prime is 169429657. The next prime is 169429699. The reversal of 169429679 is 976924961.

169429679 is digitally balanced in base 2, 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 a de Polignac number, because none of the positive numbers 2k-169429679 is a prime.

It is a super-2 number, since 2×1694296792 = 57412832252086082, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 169429679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169429619) 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, 103907 + ... + 105524.

It is an arithmetic number, because the mean of its divisors is an integer number (42409980).

Almost surely, 2169429679 is an apocalyptic number.

169429679 is a deficient number, since it is larger than the sum of its proper divisors (210241).

169429679 is an equidigital number, since it uses as much as digits as its factorization.

169429679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210240.

The product of its digits is 1469664, while the sum is 53.

The square root of 169429679 is about 13016.5156243904. The cubic root of 169429679 is about 553.3456446754.

The spelling of 169429679 in words is "one hundred sixty-nine million, four hundred twenty-nine thousand, six hundred seventy-nine".

Divisors: 1 809 209431 169429679