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165470741 = 1719749409
BaseRepresentation
bin10011101110011…
…10001000010101
3102112100210011222
421313032020111
5314330030431
624230340125
74046322662
oct1167161025
9375323158
10165470741
1185449687
12474ba645
13283878a7
1417d94a69
15e7d857b
hex9dce215

165470741 has 8 divisors (see below), whose sum is σ = 176097240. Its totient is φ = 154943488.

The previous prime is 165470731. The next prime is 165470761. The reversal of 165470741 is 147074561.

It is a happy number.

165470741 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 85636516 + 79834225 = 9254^2 + 8935^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 165470741 - 214 = 165454357 is a prime.

It is a super-2 number, since 2×1654707412 = 54761132254178162, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165470731) 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, 21356 + ... + 28053.

It is an arithmetic number, because the mean of its divisors is an integer number (22012155).

Almost surely, 2165470741 is an apocalyptic number.

It is an amenable number.

165470741 is a deficient number, since it is larger than the sum of its proper divisors (10626499).

165470741 is a wasteful number, since it uses less digits than its factorization.

165470741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49623.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 165470741 is about 12863.5430966744. The cubic root of 165470741 is about 549.0017606609.

The spelling of 165470741 in words is "one hundred sixty-five million, four hundred seventy thousand, seven hundred forty-one".

Divisors: 1 17 197 3349 49409 839953 9733573 165470741