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207093489 = 3491140593
BaseRepresentation
bin11000101011111…
…11111011110001
3112102200102212020
430111333323301
5411003442424
632314422053
75063160051
oct1425777361
9472612766
10207093489
11a6998449
1259431929
1333b9bc35
141d70b561
15132ab079
hexc57fef1

207093489 has 8 divisors (see below), whose sum is σ = 276688992. Its totient is φ = 137780160.

The previous prime is 207093487. The next prime is 207093493. The reversal of 207093489 is 984390702.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 207093489 - 21 = 207093487 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 207093489.

It is not an unprimeable number, because it can be changed into a prime (207093487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68824 + ... + 71769.

It is an arithmetic number, because the mean of its divisors is an integer number (34586124).

Almost surely, 2207093489 is an apocalyptic number.

It is an amenable number.

207093489 is a deficient number, since it is larger than the sum of its proper divisors (69595503).

207093489 is a wasteful number, since it uses less digits than its factorization.

207093489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141087.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 207093489 is about 14390.7431705246. The cubic root of 207093489 is about 591.6372117145.

It can be divided in two parts, 2070 and 93489, that added together give a palindrome (95559).

The spelling of 207093489 in words is "two hundred seven million, ninety-three thousand, four hundred eighty-nine".

Divisors: 1 3 491 1473 140593 421779 69031163 207093489