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920528161 = 72178910501
BaseRepresentation
bin110110110111100…
…010010100100001
32101011010200020121
4312313202110201
53341123400121
6231202040241
731545234400
oct6667422441
92334120217
10920528161
11432683483
12218349081
13118933327
148a381637
1555c34141
hex36de2521

920528161 has 12 divisors (see below), whose sum is σ = 1071519060. Its totient is φ = 788508000.

The previous prime is 920528153. The next prime is 920528197. The reversal of 920528161 is 161825029.

920528161 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 2 ways, for example, as 612315025 + 308213136 = 24745^2 + 17556^2 .

It is not a de Polignac number, because 920528161 - 23 = 920528153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (920528101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82411 + ... + 92911.

It is an arithmetic number, because the mean of its divisors is an integer number (89293255).

Almost surely, 2920528161 is an apocalyptic number.

It is an amenable number.

920528161 is a deficient number, since it is larger than the sum of its proper divisors (150990899).

920528161 is a wasteful number, since it uses less digits than its factorization.

920528161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12304 (or 12297 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 920528161 is about 30340.2070032490. The cubic root of 920528161 is about 972.7749078198.

The spelling of 920528161 in words is "nine hundred twenty million, five hundred twenty-eight thousand, one hundred sixty-one".

Divisors: 1 7 49 1789 10501 12523 73507 87661 514549 18786289 131504023 920528161