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687113416 = 231119410953
BaseRepresentation
bin101000111101001…
…000010011001000
31202212220222102001
4220331020103020
52401400112131
6152103120344
723012240053
oct5075102310
91685828361
10687113416
11322948530
121721430b4
13ac4799b2
1467381a9a
15404c9261
hex28f484c8

687113416 has 32 divisors (see below), whose sum is σ = 1479434400. Its totient is φ = 295885440.

The previous prime is 687113393. The next prime is 687113417. The reversal of 687113416 is 614311786.

It is not an unprimeable number, because it can be changed into a prime (687113417) 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, 203805 + ... + 207148.

It is an arithmetic number, because the mean of its divisors is an integer number (46232325).

Almost surely, 2687113416 is an apocalyptic number.

It is an amenable number.

687113416 is an abundant number, since it is smaller than the sum of its proper divisors (792320984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

687113416 is a wasteful number, since it uses less digits than its factorization.

687113416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410989 (or 410985 counting only the distinct ones).

The product of its digits is 24192, while the sum is 37.

The square root of 687113416 is about 26212.8483000226. The cubic root of 687113416 is about 882.4216253991.

It can be divided in two parts, 68711 and 3416, that added together give a palindrome (72127).

The spelling of 687113416 in words is "six hundred eighty-seven million, one hundred thirteen thousand, four hundred sixteen".

Divisors: 1 2 4 8 11 19 22 38 44 76 88 152 209 418 836 1672 410953 821906 1643812 3287624 4520483 7808107 9040966 15616214 18081932 31232428 36163864 62464856 85889177 171778354 343556708 687113416