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169444514 = 284722257
BaseRepresentation
bin10100001100110…
…00010010100010
3102210211200011202
422012120102202
5321334211024
624451441202
74125153221
oct1206302242
9383750152
10169444514
1187713198
12488b6202
1329149535
141870acb8
15ed20bae
hexa1984a2

169444514 has 4 divisors (see below), whose sum is σ = 254166774. Its totient is φ = 84722256.

The previous prime is 169444507. The next prime is 169444523. The reversal of 169444514 is 415444961.

It is a happy number.

169444514 is digitally balanced in base 3, 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, and also an emirpimes, since its reverse is a distinct semiprime: 415444961 = 809513529.

It can be written as a sum of positive squares in only one way, i.e., 169390225 + 54289 = 13015^2 + 233^2 .

It is a super-2 number, since 2×1694445142 = 57422886649392392, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42361127 + ... + 42361130.

Almost surely, 2169444514 is an apocalyptic number.

169444514 is a deficient number, since it is larger than the sum of its proper divisors (84722260).

169444514 is an equidigital number, since it uses as much as digits as its factorization.

169444514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84722259.

The product of its digits is 69120, while the sum is 38.

The square root of 169444514 is about 13017.0854648804. The cubic root of 169444514 is about 553.3617942329.

The spelling of 169444514 in words is "one hundred sixty-nine million, four hundred forty-four thousand, five hundred fourteen".

Divisors: 1 2 84722257 169444514