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169080923 = 113127033
BaseRepresentation
bin10100001001111…
…11100001011011
3102210011012102102
422010333201123
5321241042143
624435554015
74122110204
oct1204774133
9383135372
10169080923
1187495000
124875b90b
132904cbab
14186545ab
15ec9d0b8
hexa13f85b

169080923 has 8 divisors (see below), whose sum is σ = 185977776. Its totient is φ = 153708720.

The previous prime is 169080911. The next prime is 169081013. The reversal of 169080923 is 329080961.

It is not a de Polignac number, because 169080923 - 216 = 169015387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (169080823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62186 + ... + 64847.

It is an arithmetic number, because the mean of its divisors is an integer number (23247222).

Almost surely, 2169080923 is an apocalyptic number.

169080923 is a deficient number, since it is larger than the sum of its proper divisors (16896853).

169080923 is an equidigital number, since it uses as much as digits as its factorization.

169080923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127066 (or 127044 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 169080923 is about 13003.1120505824. The cubic root of 169080923 is about 552.9657128575.

Adding to 169080923 its sum of digits (38), we get a palindrome (169080961).

The spelling of 169080923 in words is "one hundred sixty-nine million, eighty thousand, nine hundred twenty-three".

Divisors: 1 11 121 1331 127033 1397363 15370993 169080923