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8970091 = 134753277
BaseRepresentation
bin100010001101…
…111101101011
3121212201122121
4202031331223
54244020331
6520132111
7136146604
oct42157553
917781577
108970091
1150773a9
123007037
131b20b60
141296dab
15bc2c11
hex88df6b

8970091 has 16 divisors (see below), whose sum is σ = 10088064. Its totient is φ = 7922304.

The previous prime is 8970089. The next prime is 8970097. The reversal of 8970091 is 1900798.

It is not a de Polignac number, because 8970091 - 21 = 8970089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8970097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32245 + ... + 32521.

It is an arithmetic number, because the mean of its divisors is an integer number (630504).

Almost surely, 28970091 is an apocalyptic number.

8970091 is a deficient number, since it is larger than the sum of its proper divisors (1117973).

8970091 is a wasteful number, since it uses less digits than its factorization.

8970091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390.

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 8970091 is about 2995.0110183437. The cubic root of 8970091 is about 207.7777072285. Note that the first 4 decimals are identical.

The spelling of 8970091 in words is "eight million, nine hundred seventy thousand, ninety-one".

Divisors: 1 13 47 53 277 611 689 2491 3601 13019 14681 32383 169247 190853 690007 8970091