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169253430 = 2355641781
BaseRepresentation
bin10100001011010…
…01101000110110
3102210110222001120
422011221220312
5321312102210
624443404410
74123426143
oct1205515066
9383428046
10169253430
11875a2675
1248823706
13290b0578
141869b3ca
15ecd4270
hexa169a36

169253430 has 16 divisors (see below), whose sum is σ = 406208304. Its totient is φ = 45134240.

The previous prime is 169253419. The next prime is 169253431. The reversal of 169253430 is 34352961.

169253430 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 169253391 and 169253400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169253431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2820861 + ... + 2820920.

It is an arithmetic number, because the mean of its divisors is an integer number (25388019).

Almost surely, 2169253430 is an apocalyptic number.

169253430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

169253430 is an abundant number, since it is smaller than the sum of its proper divisors (236954874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

169253430 is a wasteful number, since it uses less digits than its factorization.

169253430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5641791.

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 169253430 is about 13009.7436561986. The cubic root of 169253430 is about 553.1537057463.

The spelling of 169253430 in words is "one hundred sixty-nine million, two hundred fifty-three thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 5641781 11283562 16925343 28208905 33850686 56417810 84626715 169253430