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970145 = 51131569
BaseRepresentation
bin11101100110110100001
31211021210022
43230312201
5222021040
632443225
711150261
oct3546641
91737708
10970145
11602980
123a9515
1327c767
141b37a1
151426b5
hexecda1

970145 has 16 divisors (see below), whose sum is σ = 1313280. Its totient is φ = 681600.

The previous prime is 970133. The next prime is 970147. The reversal of 970145 is 541079.

It is not a de Polignac number, because 970145 - 28 = 969889 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 970145.

It is not an unprimeable number, because it can be changed into a prime (970147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1421 + ... + 1989.

It is an arithmetic number, because the mean of its divisors is an integer number (82080).

2970145 is an apocalyptic number.

970145 is the 569-th octagonal number.

It is an amenable number.

970145 is a deficient number, since it is larger than the sum of its proper divisors (343135).

970145 is a wasteful number, since it uses less digits than its factorization.

970145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 970145 is about 984.9593900258. The cubic root of 970145 is about 98.9947621621.

The spelling of 970145 in words is "nine hundred seventy thousand, one hundred forty-five".

Divisors: 1 5 11 31 55 155 341 569 1705 2845 6259 17639 31295 88195 194029 970145