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161027514 = 234993997
BaseRepresentation
bin10011001100100…
…01010110111010
3102020000001020000
421212101112322
5312210340024
623551213430
73663465654
oct1146212672
9366001200
10161027514
118299439a
1245b17276
132749036b
14175596d4
15e20bcc9
hex99915ba

161027514 has 20 divisors (see below), whose sum is σ = 360821274. Its totient is φ = 53675784.

The previous prime is 161027507. The next prime is 161027539. The reversal of 161027514 is 415720161.

It is a happy number.

161027514 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 only one way, i.e., 100701225 + 60326289 = 10035^2 + 7767^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 496837 + ... + 497160.

Almost surely, 2161027514 is an apocalyptic number.

161027514 is an abundant number, since it is smaller than the sum of its proper divisors (199793760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161027514 is an equidigital number, since it uses as much as digits as its factorization.

161027514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994011 (or 994002 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 161027514 is about 12689.6616976183. The cubic root of 161027514 is about 544.0431703233.

Adding to 161027514 its reverse (415720161), we get a palindrome (576747675).

The spelling of 161027514 in words is "one hundred sixty-one million, twenty-seven thousand, five hundred fourteen".

Divisors: 1 2 3 6 9 18 27 54 81 162 993997 1987994 2981991 5963982 8945973 17891946 26837919 53675838 80513757 161027514