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169612093 = 724230299
BaseRepresentation
bin10100001110000…
…01001100111101
3102211011012001101
422013001030331
5321410041333
624455213101
74126451620
oct1207011475
9384135041
10169612093
1187818092
1248977191
13291a78b1
1418751db7
15ed5567d
hexa1c133d

169612093 has 4 divisors (see below), whose sum is σ = 193842400. Its totient is φ = 145381788.

The previous prime is 169612087. The next prime is 169612099. The reversal of 169612093 is 390216961.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (169612087) and next prime (169612099).

It is a cyclic number.

It is not a de Polignac number, because 169612093 - 25 = 169612061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169612099) 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 3 ways as a sum of consecutive naturals, for example, 12115143 + ... + 12115156.

It is an arithmetic number, because the mean of its divisors is an integer number (48460600).

Almost surely, 2169612093 is an apocalyptic number.

It is an amenable number.

169612093 is a deficient number, since it is larger than the sum of its proper divisors (24230307).

169612093 is an equidigital number, since it uses as much as digits as its factorization.

169612093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24230306.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 169612093 is about 13023.5207605317. The cubic root of 169612093 is about 553.5441572976.

The spelling of 169612093 in words is "one hundred sixty-nine million, six hundred twelve thousand, ninety-three".

Divisors: 1 7 24230299 169612093