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169930 = 2516993
BaseRepresentation
bin101001011111001010
322122002201
4221133022
520414210
63350414
71305265
oct513712
9278081
10169930
11106742
128240a
135c467
1445cdc
153553a
hex297ca

169930 has 8 divisors (see below), whose sum is σ = 305892. Its totient is φ = 67968.

The previous prime is 169919. The next prime is 169933. The reversal of 169930 is 39961.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 157609 + 12321 = 397^2 + 111^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (169933) 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, 8487 + ... + 8506.

2169930 is an apocalyptic number.

169930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

169930 is a deficient number, since it is larger than the sum of its proper divisors (135962).

169930 is a wasteful number, since it uses less digits than its factorization.

169930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17000.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 169930 is about 412.2256663528. The cubic root of 169930 is about 55.3889780712.

The spelling of 169930 in words is "one hundred sixty-nine thousand, nine hundred thirty".

Divisors: 1 2 5 10 16993 33986 84965 169930