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689111222201 = 23137321821819
BaseRepresentation
bin10100000011100100011…
…10101100011110111001
32102212201100100011200022
422001302032230132321
542242244433102301
61244323501020225
7100533550512443
oct12016216543671
92385640304608
10689111222201
11246283357786
12b1679b54675
134cca15b505c
14254d3107493
1512dd3187d1b
hexa0723ac7b9

689111222201 has 8 divisors (see below), whose sum is σ = 719596336320. Its totient is φ = 658669754512.

The previous prime is 689111222183. The next prime is 689111222203. The reversal of 689111222201 is 102222111986.

689111222201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 689111222201 - 222 = 689107027897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (689111222203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10879331 + ... + 10942488.

It is an arithmetic number, because the mean of its divisors is an integer number (89949542040).

Almost surely, 2689111222201 is an apocalyptic number.

It is an amenable number.

689111222201 is a deficient number, since it is larger than the sum of its proper divisors (30485114119).

689111222201 is a wasteful number, since it uses less digits than its factorization.

689111222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21823215.

The product of its (nonzero) digits is 6912, while the sum is 35.

The spelling of 689111222201 in words is "six hundred eighty-nine billion, one hundred eleven million, two hundred twenty-two thousand, two hundred one".

Divisors: 1 23 1373 31579 21821819 501901837 29961357487 689111222201