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165702641 = 132980489
BaseRepresentation
bin10011110000001…
…10101111110001
3102112210120021212
421320012233301
5314404441031
624235325505
74051310036
oct1170065761
9375716255
10165702641
1185597935
12475b0895
1328439300
141801538d
15e83212b
hex9e06bf1

165702641 has 6 divisors (see below), whose sum is σ = 179429670. Its totient is φ = 152956128.

The previous prime is 165702637. The next prime is 165702643. The reversal of 165702641 is 146207561.

It can be written as a sum of positive squares in 3 ways, for example, as 40000 + 165662641 = 200^2 + 12871^2 .

It is not a de Polignac number, because 165702641 - 22 = 165702637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 165702598 and 165702607.

It is not an unprimeable number, because it can be changed into a prime (165702643) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 490076 + ... + 490413.

It is an arithmetic number, because the mean of its divisors is an integer number (29904945).

Almost surely, 2165702641 is an apocalyptic number.

It is an amenable number.

165702641 is a deficient number, since it is larger than the sum of its proper divisors (13727029).

165702641 is an equidigital number, since it uses as much as digits as its factorization.

165702641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980515 (or 980502 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 165702641 is about 12872.5537870308. The cubic root of 165702641 is about 549.2581082565.

The spelling of 165702641 in words is "one hundred sixty-five million, seven hundred two thousand, six hundred forty-one".

Divisors: 1 13 169 980489 12746357 165702641